61816860

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{691}}^1$

素因数の和:784

約数の個数: 144

約数和(自身を含む): 217631232

約数和(自身を除く): 155814372

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 71, 84, 90, 105, 126, 140, 142, 180, 210, 213, 252, 284, 315, 355, 420, 426, 497, 630, 639, 691, 710, 852, 994, 1065, 1260, 1278, 1382, 1420, 1491, 1988, 2073, 2130, 2485, 2556, 2764, 2982, 3195, 3455, 4146, 4260, 4473, 4837, 4970, 5964, 6219, 6390, 6910, 7455, 8292, 8946, 9674, 9940, 10365, 12438, 12780, 13820, 14511, 14910, 17892, 19348, 20730, 22365, 24185, 24876, 29022, 29820, 31095, 41460, 43533, 44730, 48370, 49061, 58044, 62190, 72555, 87066, 89460, 96740, 98122, 124380, 145110, 147183, 174132, 196244, 217665, 245305, 290220, 294366, 343427, 435330, 441549, 490610, 588732, 686854, 735915, 870660, 883098, 981220, 1030281, 1373708, 1471830, 1717135, 1766196, 2060562, 2207745, 2943660, 3090843, 3434270, 4121124, 4415490, 5151405, 6181686, 6868540, 8830980, 10302810, 12363372, 15454215, 20605620, 30908430, 61816860]

約数ペア:

[(1, 61816860), (2, 30908430), (3, 20605620), (4, 15454215), (5, 12363372), (6, 10302810), (7, 8830980), (9, 6868540), (10, 6181686), (12, 5151405), (14, 4415490), (15, 4121124), (18, 3434270), (20, 3090843), (21, 2943660), (28, 2207745), (30, 2060562), (35, 1766196), (36, 1717135), (42, 1471830), (45, 1373708), (60, 1030281), (63, 981220), (70, 883098), (71, 870660), (84, 735915), (90, 686854), (105, 588732), (126, 490610), (140, 441549), (142, 435330), (180, 343427), (210, 294366), (213, 290220), (252, 245305), (284, 217665), (315, 196244), (355, 174132), (420, 147183), (426, 145110), (497, 124380), (630, 98122), (639, 96740), (691, 89460), (710, 87066), (852, 72555), (994, 62190), (1065, 58044), (1260, 49061), (1278, 48370), (1382, 44730), (1420, 43533), (1491, 41460), (1988, 31095), (2073, 29820), (2130, 29022), (2485, 24876), (2556, 24185), (2764, 22365), (2982, 20730), (3195, 19348), (3455, 17892), (4146, 14910), (4260, 14511), (4473, 13820), (4837, 12780), (4970, 12438), (5964, 10365), (6219, 9940), (6390, 9674), (6910, 8946), (7455, 8292)]