721110

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^2$

素因数の和:109

約数の個数: 48

約数和(自身を含む): 1908144

約数和(自身を除く): 1187034

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 43, 65, 78, 86, 129, 130, 195, 215, 258, 390, 430, 559, 645, 1118, 1290, 1677, 1849, 2795, 3354, 3698, 5547, 5590, 8385, 9245, 11094, 16770, 18490, 24037, 27735, 48074, 55470, 72111, 120185, 144222, 240370, 360555, 721110]

約数ペア:

[(1, 721110), (2, 360555), (3, 240370), (5, 144222), (6, 120185), (10, 72111), (13, 55470), (15, 48074), (26, 27735), (30, 24037), (39, 18490), (43, 16770), (65, 11094), (78, 9245), (86, 8385), (129, 5590), (130, 5547), (195, 3698), (215, 3354), (258, 2795), (390, 1849), (430, 1677), (559, 1290), (645, 1118)]