71381960

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{137273}}^1$

素因数の和:137297

約数の個数: 32

約数和(自身を含む): 172965240

約数和(自身を除く): 101583280

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 137273, 274546, 549092, 686365, 1098184, 1372730, 1784549, 2745460, 3569098, 5490920, 7138196, 8922745, 14276392, 17845490, 35690980, 71381960]

約数ペア:

[(1, 71381960), (2, 35690980), (4, 17845490), (5, 14276392), (8, 8922745), (10, 7138196), (13, 5490920), (20, 3569098), (26, 2745460), (40, 1784549), (52, 1372730), (65, 1098184), (104, 686365), (130, 549092), (260, 274546), (520, 137273)]