1978528020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{911}}^1\times {\mathrm{5171}}^1$

素因数の和:6101

約数の個数: 96

約数和(自身を含む): 6339465216

約数和(自身を除く): 4360937196

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 911, 1822, 2733, 3644, 4555, 5171, 5466, 6377, 9110, 10342, 10932, 12754, 13665, 15513, 18220, 19131, 20684, 25508, 25855, 27330, 31026, 31885, 36197, 38262, 51710, 54660, 62052, 63770, 72394, 76524, 77565, 95655, 103420, 108591, 127540, 144788, 155130, 180985, 191310, 217182, 310260, 361970, 382620, 434364, 542955, 723940, 1085910, 2171820, 4710781, 9421562, 14132343, 18843124, 23553905, 28264686, 32975467, 47107810, 56529372, 65950934, 70661715, 94215620, 98926401, 131901868, 141323430, 164877335, 197852802, 282646860, 329754670, 395705604, 494632005, 659509340, 989264010, 1978528020]

約数ペア:

[(1, 1978528020), (2, 989264010), (3, 659509340), (4, 494632005), (5, 395705604), (6, 329754670), (7, 282646860), (10, 197852802), (12, 164877335), (14, 141323430), (15, 131901868), (20, 98926401), (21, 94215620), (28, 70661715), (30, 65950934), (35, 56529372), (42, 47107810), (60, 32975467), (70, 28264686), (84, 23553905), (105, 18843124), (140, 14132343), (210, 9421562), (420, 4710781), (911, 2171820), (1822, 1085910), (2733, 723940), (3644, 542955), (4555, 434364), (5171, 382620), (5466, 361970), (6377, 310260), (9110, 217182), (10342, 191310), (10932, 180985), (12754, 155130), (13665, 144788), (15513, 127540), (18220, 108591), (19131, 103420), (20684, 95655), (25508, 77565), (25855, 76524), (27330, 72394), (31026, 63770), (31885, 62052), (36197, 54660), (38262, 51710)]