20642400

素因数分解:

$2^5\times 3^2\times 5^2\times {\mathrm{47}}^1\times {\mathrm{61}}^1$

素因数の和:134

約数の個数: 216

約数和(自身を含む): 75557664

約数和(自身を除く): 54915264

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 25, 30, 32, 36, 40, 45, 47, 48, 50, 60, 61, 72, 75, 80, 90, 94, 96, 100, 120, 122, 141, 144, 150, 160, 180, 183, 188, 200, 225, 235, 240, 244, 282, 288, 300, 305, 360, 366, 376, 400, 423, 450, 470, 480, 488, 549, 564, 600, 610, 705, 720, 732, 752, 800, 846, 900, 915, 940, 976, 1098, 1128, 1175, 1200, 1220, 1410, 1440, 1464, 1504, 1525, 1692, 1800, 1830, 1880, 1952, 2115, 2196, 2256, 2350, 2400, 2440, 2745, 2820, 2867, 2928, 3050, 3384, 3525, 3600, 3660, 3760, 4230, 4392, 4512, 4575, 4700, 4880, 5490, 5640, 5734, 5856, 6100, 6768, 7050, 7200, 7320, 7520, 8460, 8601, 8784, 9150, 9400, 9760, 10575, 10980, 11280, 11468, 12200, 13536, 13725, 14100, 14335, 14640, 16920, 17202, 17568, 18300, 18800, 21150, 21960, 22560, 22936, 24400, 25803, 27450, 28200, 28670, 29280, 33840, 34404, 36600, 37600, 42300, 43005, 43920, 45872, 48800, 51606, 54900, 56400, 57340, 67680, 68808, 71675, 73200, 84600, 86010, 87840, 91744, 103212, 109800, 112800, 114680, 129015, 137616, 143350, 146400, 169200, 172020, 206424, 215025, 219600, 229360, 258030, 275232, 286700, 338400, 344040, 412848, 430050, 439200, 458720, 516060, 573400, 645075, 688080, 825696, 860100, 1032120, 1146800, 1290150, 1376160, 1720200, 2064240, 2293600, 2580300, 3440400, 4128480, 5160600, 6880800, 10321200, 20642400]

約数ペア:

[(1, 20642400), (2, 10321200), (3, 6880800), (4, 5160600), (5, 4128480), (6, 3440400), (8, 2580300), (9, 2293600), (10, 2064240), (12, 1720200), (15, 1376160), (16, 1290150), (18, 1146800), (20, 1032120), (24, 860100), (25, 825696), (30, 688080), (32, 645075), (36, 573400), (40, 516060), (45, 458720), (47, 439200), (48, 430050), (50, 412848), (60, 344040), (61, 338400), (72, 286700), (75, 275232), (80, 258030), (90, 229360), (94, 219600), (96, 215025), (100, 206424), (120, 172020), (122, 169200), (141, 146400), (144, 143350), (150, 137616), (160, 129015), (180, 114680), (183, 112800), (188, 109800), (200, 103212), (225, 91744), (235, 87840), (240, 86010), (244, 84600), (282, 73200), (288, 71675), (300, 68808), (305, 67680), (360, 57340), (366, 56400), (376, 54900), (400, 51606), (423, 48800), (450, 45872), (470, 43920), (480, 43005), (488, 42300), (549, 37600), (564, 36600), (600, 34404), (610, 33840), (705, 29280), (720, 28670), (732, 28200), (752, 27450), (800, 25803), (846, 24400), (900, 22936), (915, 22560), (940, 21960), (976, 21150), (1098, 18800), (1128, 18300), (1175, 17568), (1200, 17202), (1220, 16920), (1410, 14640), (1440, 14335), (1464, 14100), (1504, 13725), (1525, 13536), (1692, 12200), (1800, 11468), (1830, 11280), (1880, 10980), (1952, 10575), (2115, 9760), (2196, 9400), (2256, 9150), (2350, 8784), (2400, 8601), (2440, 8460), (2745, 7520), (2820, 7320), (2867, 7200), (2928, 7050), (3050, 6768), (3384, 6100), (3525, 5856), (3600, 5734), (3660, 5640), (3760, 5490), (4230, 4880), (4392, 4700), (4512, 4575)]