72756380

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{239}}^1\times {\mathrm{491}}^1$

素因数の和:770

約数の個数: 48

約数和(自身を含む): 158699520

約数和(自身を除く): 85943140

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 239, 310, 478, 491, 620, 956, 982, 1195, 1964, 2390, 2455, 4780, 4910, 7409, 9820, 14818, 15221, 29636, 30442, 37045, 60884, 74090, 76105, 117349, 148180, 152210, 234698, 304420, 469396, 586745, 1173490, 2346980, 3637819, 7275638, 14551276, 18189095, 36378190, 72756380]

約数ペア:

[(1, 72756380), (2, 36378190), (4, 18189095), (5, 14551276), (10, 7275638), (20, 3637819), (31, 2346980), (62, 1173490), (124, 586745), (155, 469396), (239, 304420), (310, 234698), (478, 152210), (491, 148180), (620, 117349), (956, 76105), (982, 74090), (1195, 60884), (1964, 37045), (2390, 30442), (2455, 29636), (4780, 15221), (4910, 14818), (7409, 9820)]