401960

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{773}}^1$

素因数の和:797

約数の個数: 32

約数和(自身を含む): 975240

約数和(自身を除く): 573280

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 773, 1546, 3092, 3865, 6184, 7730, 10049, 15460, 20098, 30920, 40196, 50245, 80392, 100490, 200980, 401960]

約数ペア:

[(1, 401960), (2, 200980), (4, 100490), (5, 80392), (8, 50245), (10, 40196), (13, 30920), (20, 20098), (26, 15460), (40, 10049), (52, 7730), (65, 6184), (104, 3865), (130, 3092), (260, 1546), (520, 773)]