19733480

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{277}}^1$

素因数の和:438

約数の個数: 64

約数和(自身を含む): 48338640

約数和(自身を除く): 28605160

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 137, 260, 274, 277, 520, 548, 554, 685, 1096, 1108, 1370, 1385, 1781, 2216, 2740, 2770, 3562, 3601, 5480, 5540, 7124, 7202, 8905, 11080, 14248, 14404, 17810, 18005, 28808, 35620, 36010, 37949, 71240, 72020, 75898, 144040, 151796, 189745, 303592, 379490, 493337, 758980, 986674, 1517960, 1973348, 2466685, 3946696, 4933370, 9866740, 19733480]

約数ペア:

[(1, 19733480), (2, 9866740), (4, 4933370), (5, 3946696), (8, 2466685), (10, 1973348), (13, 1517960), (20, 986674), (26, 758980), (40, 493337), (52, 379490), (65, 303592), (104, 189745), (130, 151796), (137, 144040), (260, 75898), (274, 72020), (277, 71240), (520, 37949), (548, 36010), (554, 35620), (685, 28808), (1096, 18005), (1108, 17810), (1370, 14404), (1385, 14248), (1781, 11080), (2216, 8905), (2740, 7202), (2770, 7124), (3562, 5540), (3601, 5480)]