28280200

素因数分解:

$2^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{149}}^1$

素因数の和:251

約数の個数: 96

約数和(自身を含む): 72261000

約数和(自身を除く): 43980800

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 73, 100, 104, 130, 146, 149, 200, 260, 292, 298, 325, 365, 520, 584, 596, 650, 730, 745, 949, 1192, 1300, 1460, 1490, 1825, 1898, 1937, 2600, 2920, 2980, 3650, 3725, 3796, 3874, 4745, 5960, 7300, 7450, 7592, 7748, 9490, 9685, 10877, 14600, 14900, 15496, 18980, 19370, 21754, 23725, 29800, 37960, 38740, 43508, 47450, 48425, 54385, 77480, 87016, 94900, 96850, 108770, 141401, 189800, 193700, 217540, 271925, 282802, 387400, 435080, 543850, 565604, 707005, 1087700, 1131208, 1414010, 2175400, 2828020, 3535025, 5656040, 7070050, 14140100, 28280200]

約数ペア:

[(1, 28280200), (2, 14140100), (4, 7070050), (5, 5656040), (8, 3535025), (10, 2828020), (13, 2175400), (20, 1414010), (25, 1131208), (26, 1087700), (40, 707005), (50, 565604), (52, 543850), (65, 435080), (73, 387400), (100, 282802), (104, 271925), (130, 217540), (146, 193700), (149, 189800), (200, 141401), (260, 108770), (292, 96850), (298, 94900), (325, 87016), (365, 77480), (520, 54385), (584, 48425), (596, 47450), (650, 43508), (730, 38740), (745, 37960), (949, 29800), (1192, 23725), (1300, 21754), (1460, 19370), (1490, 18980), (1825, 15496), (1898, 14900), (1937, 14600), (2600, 10877), (2920, 9685), (2980, 9490), (3650, 7748), (3725, 7592), (3796, 7450), (3874, 7300), (4745, 5960)]