20490921360

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{312743}}^1$

素因数の和:312782

約数の個数: 240

約数和(自身を含む): 84696079104

約数和(自身を除く): 64205157744

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 13, 14, 15, 16, 18, 20, 21, 24, 26, 28, 30, 35, 36, 39, 40, 42, 45, 48, 52, 56, 60, 63, 65, 70, 72, 78, 80, 84, 90, 91, 104, 105, 112, 117, 120, 126, 130, 140, 144, 156, 168, 180, 182, 195, 208, 210, 234, 240, 252, 260, 273, 280, 312, 315, 336, 360, 364, 390, 420, 455, 468, 504, 520, 546, 560, 585, 624, 630, 720, 728, 780, 819, 840, 910, 936, 1008, 1040, 1092, 1170, 1260, 1365, 1456, 1560, 1638, 1680, 1820, 1872, 2184, 2340, 2520, 2730, 3120, 3276, 3640, 4095, 4368, 4680, 5040, 5460, 6552, 7280, 8190, 9360, 10920, 13104, 16380, 21840, 32760, 65520, 312743, 625486, 938229, 1250972, 1563715, 1876458, 2189201, 2501944, 2814687, 3127430, 3752916, 4065659, 4378402, 4691145, 5003888, 5629374, 6254860, 6567603, 7505832, 8131318, 8756804, 9382290, 10946005, 11258748, 12196977, 12509720, 13135206, 14073435, 15011664, 16262636, 17513608, 18764580, 19702809, 20328295, 21892010, 22517496, 24393954, 25019440, 26270412, 28146870, 28459613, 32525272, 32838015, 35027216, 36590931, 37529160, 39405618, 40656590, 43784020, 45034992, 48787908, 52540824, 56293740, 56919226, 60984885, 65050544, 65676030, 73181862, 75058320, 78811236, 81313180, 85378839, 87568040, 97575816, 98514045, 105081648, 112587480, 113838452, 121969770, 131352060, 142298065, 146363724, 157622472, 162626360, 170757678, 175136080, 182954655, 195151632, 197028090, 225174960, 227676904, 243939540, 256136517, 262704120, 284596130, 292727448, 315244944, 325252720, 341515356, 365909310, 394056180, 426894195, 455353808, 487879080, 512273034, 525408240, 569192260, 585454896, 683030712, 731818620, 788112360, 853788390, 975758160, 1024546068, 1138384520, 1280682585, 1366061424, 1463637240, 1576224720, 1707576780, 2049092136, 2276769040, 2561365170, 2927274480, 3415153560, 4098184272, 5122730340, 6830307120, 10245460680, 20490921360]

約数ペア:

[(1, 20490921360), (2, 10245460680), (3, 6830307120), (4, 5122730340), (5, 4098184272), (6, 3415153560), (7, 2927274480), (8, 2561365170), (9, 2276769040), (10, 2049092136), (12, 1707576780), (13, 1576224720), (14, 1463637240), (15, 1366061424), (16, 1280682585), (18, 1138384520), (20, 1024546068), (21, 975758160), (24, 853788390), (26, 788112360), (28, 731818620), (30, 683030712), (35, 585454896), (36, 569192260), (39, 525408240), (40, 512273034), (42, 487879080), (45, 455353808), (48, 426894195), (52, 394056180), (56, 365909310), (60, 341515356), (63, 325252720), (65, 315244944), (70, 292727448), (72, 284596130), (78, 262704120), (80, 256136517), (84, 243939540), (90, 227676904), (91, 225174960), (104, 197028090), (105, 195151632), (112, 182954655), (117, 175136080), (120, 170757678), (126, 162626360), (130, 157622472), (140, 146363724), (144, 142298065), (156, 131352060), (168, 121969770), (180, 113838452), (182, 112587480), (195, 105081648), (208, 98514045), (210, 97575816), (234, 87568040), (240, 85378839), (252, 81313180), (260, 78811236), (273, 75058320), (280, 73181862), (312, 65676030), (315, 65050544), (336, 60984885), (360, 56919226), (364, 56293740), (390, 52540824), (420, 48787908), (455, 45034992), (468, 43784020), (504, 40656590), (520, 39405618), (546, 37529160), (560, 36590931), (585, 35027216), (624, 32838015), (630, 32525272), (720, 28459613), (728, 28146870), (780, 26270412), (819, 25019440), (840, 24393954), (910, 22517496), (936, 21892010), (1008, 20328295), (1040, 19702809), (1092, 18764580), (1170, 17513608), (1260, 16262636), (1365, 15011664), (1456, 14073435), (1560, 13135206), (1638, 12509720), (1680, 12196977), (1820, 11258748), (1872, 10946005), (2184, 9382290), (2340, 8756804), (2520, 8131318), (2730, 7505832), (3120, 6567603), (3276, 6254860), (3640, 5629374), (4095, 5003888), (4368, 4691145), (4680, 4378402), (5040, 4065659), (5460, 3752916), (6552, 3127430), (7280, 2814687), (8190, 2501944), (9360, 2189201), (10920, 1876458), (13104, 1563715), (16380, 1250972), (21840, 938229), (32760, 625486), (65520, 312743)]