81316400

素因数分解:

$2^4\times 5^2\times {\mathrm{11}}^1\times {\mathrm{18481}}^1$

素因数の和:18510

約数の個数: 60

約数和(自身を含む): 213134424

約数和(自身を除く): 131818024

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 40, 44, 50, 55, 80, 88, 100, 110, 176, 200, 220, 275, 400, 440, 550, 880, 1100, 2200, 4400, 18481, 36962, 73924, 92405, 147848, 184810, 203291, 295696, 369620, 406582, 462025, 739240, 813164, 924050, 1016455, 1478480, 1626328, 1848100, 2032910, 3252656, 3696200, 4065820, 5082275, 7392400, 8131640, 10164550, 16263280, 20329100, 40658200, 81316400]

約数ペア:

[(1, 81316400), (2, 40658200), (4, 20329100), (5, 16263280), (8, 10164550), (10, 8131640), (11, 7392400), (16, 5082275), (20, 4065820), (22, 3696200), (25, 3252656), (40, 2032910), (44, 1848100), (50, 1626328), (55, 1478480), (80, 1016455), (88, 924050), (100, 813164), (110, 739240), (176, 462025), (200, 406582), (220, 369620), (275, 295696), (400, 203291), (440, 184810), (550, 147848), (880, 92405), (1100, 73924), (2200, 36962), (4400, 18481)]