21888100

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{149}}^1$

素因数の和:289

約数の個数: 72

約数和(自身を含む): 51949800

約数和(自身を除く): 30061700

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 113, 130, 149, 226, 260, 298, 325, 452, 565, 596, 650, 745, 1130, 1300, 1469, 1490, 1937, 2260, 2825, 2938, 2980, 3725, 3874, 5650, 5876, 7345, 7450, 7748, 9685, 11300, 14690, 14900, 16837, 19370, 29380, 33674, 36725, 38740, 48425, 67348, 73450, 84185, 96850, 146900, 168370, 193700, 218881, 336740, 420925, 437762, 841850, 875524, 1094405, 1683700, 2188810, 4377620, 5472025, 10944050, 21888100]

約数ペア:

[(1, 21888100), (2, 10944050), (4, 5472025), (5, 4377620), (10, 2188810), (13, 1683700), (20, 1094405), (25, 875524), (26, 841850), (50, 437762), (52, 420925), (65, 336740), (100, 218881), (113, 193700), (130, 168370), (149, 146900), (226, 96850), (260, 84185), (298, 73450), (325, 67348), (452, 48425), (565, 38740), (596, 36725), (650, 33674), (745, 29380), (1130, 19370), (1300, 16837), (1469, 14900), (1490, 14690), (1937, 11300), (2260, 9685), (2825, 7748), (2938, 7450), (2980, 7345), (3725, 5876), (3874, 5650)]