80846800

素因数分解:

$2^4\times 5^2\times {\mathrm{359}}^1\times {\mathrm{563}}^1$

素因数の和:940

約数の個数: 60

約数和(自身を含む): 195121440

約数和(自身を除く): 114274640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 359, 400, 563, 718, 1126, 1436, 1795, 2252, 2815, 2872, 3590, 4504, 5630, 5744, 7180, 8975, 9008, 11260, 14075, 14360, 17950, 22520, 28150, 28720, 35900, 45040, 56300, 71800, 112600, 143600, 202117, 225200, 404234, 808468, 1010585, 1616936, 2021170, 3233872, 4042340, 5052925, 8084680, 10105850, 16169360, 20211700, 40423400, 80846800]

約数ペア:

[(1, 80846800), (2, 40423400), (4, 20211700), (5, 16169360), (8, 10105850), (10, 8084680), (16, 5052925), (20, 4042340), (25, 3233872), (40, 2021170), (50, 1616936), (80, 1010585), (100, 808468), (200, 404234), (359, 225200), (400, 202117), (563, 143600), (718, 112600), (1126, 71800), (1436, 56300), (1795, 45040), (2252, 35900), (2815, 28720), (2872, 28150), (3590, 22520), (4504, 17950), (5630, 14360), (5744, 14075), (7180, 11260), (8975, 9008)]