7914920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{491}}^1$

素因数の和:546

約数の個数: 64

約数和(自身を含む): 19837440

約数和(自身を除く): 11922520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 52, 62, 65, 104, 124, 130, 155, 248, 260, 310, 403, 491, 520, 620, 806, 982, 1240, 1612, 1964, 2015, 2455, 3224, 3928, 4030, 4910, 6383, 8060, 9820, 12766, 15221, 16120, 19640, 25532, 30442, 31915, 51064, 60884, 63830, 76105, 121768, 127660, 152210, 197873, 255320, 304420, 395746, 608840, 791492, 989365, 1582984, 1978730, 3957460, 7914920]

約数ペア:

[(1, 7914920), (2, 3957460), (4, 1978730), (5, 1582984), (8, 989365), (10, 791492), (13, 608840), (20, 395746), (26, 304420), (31, 255320), (40, 197873), (52, 152210), (62, 127660), (65, 121768), (104, 76105), (124, 63830), (130, 60884), (155, 51064), (248, 31915), (260, 30442), (310, 25532), (403, 19640), (491, 16120), (520, 15221), (620, 12766), (806, 9820), (982, 8060), (1240, 6383), (1612, 4910), (1964, 4030), (2015, 3928), (2455, 3224)]