3957460

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{491}}^1$

素因数の和:544

約数の個数: 48

約数和(自身を含む): 9257472

約数和(自身を除く): 5300012

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 130, 155, 260, 310, 403, 491, 620, 806, 982, 1612, 1964, 2015, 2455, 4030, 4910, 6383, 8060, 9820, 12766, 15221, 25532, 30442, 31915, 60884, 63830, 76105, 127660, 152210, 197873, 304420, 395746, 791492, 989365, 1978730, 3957460]

約数ペア:

[(1, 3957460), (2, 1978730), (4, 989365), (5, 791492), (10, 395746), (13, 304420), (20, 197873), (26, 152210), (31, 127660), (52, 76105), (62, 63830), (65, 60884), (124, 31915), (130, 30442), (155, 25532), (260, 15221), (310, 12766), (403, 9820), (491, 8060), (620, 6383), (806, 4910), (982, 4030), (1612, 2455), (1964, 2015)]