20635020

素因数分解:

$2^2\times 3^3\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{103}}^1$

素因数の和:181

約数の個数: 192

約数和(自身を含む): 75479040

約数和(自身を除く): 54844020

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 53, 54, 60, 63, 70, 84, 90, 103, 105, 106, 108, 126, 135, 140, 159, 180, 189, 206, 210, 212, 252, 265, 270, 309, 315, 318, 371, 378, 412, 420, 477, 515, 530, 540, 618, 630, 636, 721, 742, 756, 795, 927, 945, 954, 1030, 1060, 1113, 1236, 1260, 1431, 1442, 1484, 1545, 1590, 1854, 1855, 1890, 1908, 2060, 2163, 2226, 2385, 2781, 2862, 2884, 3090, 3180, 3339, 3605, 3708, 3710, 3780, 4326, 4452, 4635, 4770, 5459, 5562, 5565, 5724, 6180, 6489, 6678, 7155, 7210, 7420, 8652, 9270, 9540, 10017, 10815, 10918, 11124, 11130, 12978, 13356, 13905, 14310, 14420, 16377, 16695, 18540, 19467, 20034, 21630, 21836, 22260, 25956, 27295, 27810, 28620, 32445, 32754, 33390, 38213, 38934, 40068, 43260, 49131, 50085, 54590, 55620, 64890, 65508, 66780, 76426, 77868, 81885, 97335, 98262, 100170, 109180, 114639, 129780, 147393, 152852, 163770, 191065, 194670, 196524, 200340, 229278, 245655, 294786, 327540, 343917, 382130, 389340, 458556, 491310, 573195, 589572, 687834, 736965, 764260, 982620, 1031751, 1146390, 1375668, 1473930, 1719585, 2063502, 2292780, 2947860, 3439170, 4127004, 5158755, 6878340, 10317510, 20635020]

約数ペア:

[(1, 20635020), (2, 10317510), (3, 6878340), (4, 5158755), (5, 4127004), (6, 3439170), (7, 2947860), (9, 2292780), (10, 2063502), (12, 1719585), (14, 1473930), (15, 1375668), (18, 1146390), (20, 1031751), (21, 982620), (27, 764260), (28, 736965), (30, 687834), (35, 589572), (36, 573195), (42, 491310), (45, 458556), (53, 389340), (54, 382130), (60, 343917), (63, 327540), (70, 294786), (84, 245655), (90, 229278), (103, 200340), (105, 196524), (106, 194670), (108, 191065), (126, 163770), (135, 152852), (140, 147393), (159, 129780), (180, 114639), (189, 109180), (206, 100170), (210, 98262), (212, 97335), (252, 81885), (265, 77868), (270, 76426), (309, 66780), (315, 65508), (318, 64890), (371, 55620), (378, 54590), (412, 50085), (420, 49131), (477, 43260), (515, 40068), (530, 38934), (540, 38213), (618, 33390), (630, 32754), (636, 32445), (721, 28620), (742, 27810), (756, 27295), (795, 25956), (927, 22260), (945, 21836), (954, 21630), (1030, 20034), (1060, 19467), (1113, 18540), (1236, 16695), (1260, 16377), (1431, 14420), (1442, 14310), (1484, 13905), (1545, 13356), (1590, 12978), (1854, 11130), (1855, 11124), (1890, 10918), (1908, 10815), (2060, 10017), (2163, 9540), (2226, 9270), (2385, 8652), (2781, 7420), (2862, 7210), (2884, 7155), (3090, 6678), (3180, 6489), (3339, 6180), (3605, 5724), (3708, 5565), (3710, 5562), (3780, 5459), (4326, 4770), (4452, 4635)]