20150775

素因数分解:

$3^5\times 5^2\times {\mathrm{31}}^1\times {\mathrm{107}}^1$

素因数の和:163

約数の個数: 72

約数和(自身を含む): 38997504

約数和(自身を除く): 18846729

約数列:

[1, 3, 5, 9, 15, 25, 27, 31, 45, 75, 81, 93, 107, 135, 155, 225, 243, 279, 321, 405, 465, 535, 675, 775, 837, 963, 1215, 1395, 1605, 2025, 2325, 2511, 2675, 2889, 3317, 4185, 4815, 6075, 6975, 7533, 8025, 8667, 9951, 12555, 14445, 16585, 20925, 24075, 26001, 29853, 37665, 43335, 49755, 62775, 72225, 82925, 89559, 130005, 149265, 188325, 216675, 248775, 268677, 447795, 650025, 746325, 806031, 1343385, 2238975, 4030155, 6716925, 20150775]

約数ペア:

[(1, 20150775), (3, 6716925), (5, 4030155), (9, 2238975), (15, 1343385), (25, 806031), (27, 746325), (31, 650025), (45, 447795), (75, 268677), (81, 248775), (93, 216675), (107, 188325), (135, 149265), (155, 130005), (225, 89559), (243, 82925), (279, 72225), (321, 62775), (405, 49755), (465, 43335), (535, 37665), (675, 29853), (775, 26001), (837, 24075), (963, 20925), (1215, 16585), (1395, 14445), (1605, 12555), (2025, 9951), (2325, 8667), (2511, 8025), (2675, 7533), (2889, 6975), (3317, 6075), (4185, 4815)]