71578540

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{223}}^1\times {\mathrm{1459}}^1$

素因数の和:1702

約数の個数: 48

約数和(自身を含む): 164828160

約数和(自身を除く): 93249620

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 223, 446, 892, 1115, 1459, 2230, 2453, 2918, 4460, 4906, 5836, 7295, 9812, 12265, 14590, 16049, 24530, 29180, 32098, 49060, 64196, 80245, 160490, 320980, 325357, 650714, 1301428, 1626785, 3253570, 3578927, 6507140, 7157854, 14315708, 17894635, 35789270, 71578540]

約数ペア:

[(1, 71578540), (2, 35789270), (4, 17894635), (5, 14315708), (10, 7157854), (11, 6507140), (20, 3578927), (22, 3253570), (44, 1626785), (55, 1301428), (110, 650714), (220, 325357), (223, 320980), (446, 160490), (892, 80245), (1115, 64196), (1459, 49060), (2230, 32098), (2453, 29180), (2918, 24530), (4460, 16049), (4906, 14590), (5836, 12265), (7295, 9812)]