20464080

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{937}}^1$

素因数の和:973

約数の個数: 160

約数和(自身を含む): 78161664

約数和(自身を除く): 57697584

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 16, 20, 21, 24, 26, 28, 30, 35, 39, 40, 42, 48, 52, 56, 60, 65, 70, 78, 80, 84, 91, 104, 105, 112, 120, 130, 140, 156, 168, 182, 195, 208, 210, 240, 260, 273, 280, 312, 336, 364, 390, 420, 455, 520, 546, 560, 624, 728, 780, 840, 910, 937, 1040, 1092, 1365, 1456, 1560, 1680, 1820, 1874, 2184, 2730, 2811, 3120, 3640, 3748, 4368, 4685, 5460, 5622, 6559, 7280, 7496, 9370, 10920, 11244, 12181, 13118, 14055, 14992, 18740, 19677, 21840, 22488, 24362, 26236, 28110, 32795, 36543, 37480, 39354, 44976, 48724, 52472, 56220, 60905, 65590, 73086, 74960, 78708, 85267, 97448, 98385, 104944, 112440, 121810, 131180, 146172, 157416, 170534, 182715, 194896, 196770, 224880, 243620, 255801, 262360, 292344, 314832, 341068, 365430, 393540, 426335, 487240, 511602, 524720, 584688, 682136, 730860, 787080, 852670, 974480, 1023204, 1279005, 1364272, 1461720, 1574160, 1705340, 2046408, 2558010, 2923440, 3410680, 4092816, 5116020, 6821360, 10232040, 20464080]

約数ペア:

[(1, 20464080), (2, 10232040), (3, 6821360), (4, 5116020), (5, 4092816), (6, 3410680), (7, 2923440), (8, 2558010), (10, 2046408), (12, 1705340), (13, 1574160), (14, 1461720), (15, 1364272), (16, 1279005), (20, 1023204), (21, 974480), (24, 852670), (26, 787080), (28, 730860), (30, 682136), (35, 584688), (39, 524720), (40, 511602), (42, 487240), (48, 426335), (52, 393540), (56, 365430), (60, 341068), (65, 314832), (70, 292344), (78, 262360), (80, 255801), (84, 243620), (91, 224880), (104, 196770), (105, 194896), (112, 182715), (120, 170534), (130, 157416), (140, 146172), (156, 131180), (168, 121810), (182, 112440), (195, 104944), (208, 98385), (210, 97448), (240, 85267), (260, 78708), (273, 74960), (280, 73086), (312, 65590), (336, 60905), (364, 56220), (390, 52472), (420, 48724), (455, 44976), (520, 39354), (546, 37480), (560, 36543), (624, 32795), (728, 28110), (780, 26236), (840, 24362), (910, 22488), (937, 21840), (1040, 19677), (1092, 18740), (1365, 14992), (1456, 14055), (1560, 13118), (1680, 12181), (1820, 11244), (1874, 10920), (2184, 9370), (2730, 7496), (2811, 7280), (3120, 6559), (3640, 5622), (3748, 5460), (4368, 4685)]