15829840

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{491}}^1$

素因数の和:548

約数の個数: 80

約数和(自身を含む): 40997376

約数和(自身を除く): 25167536

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 40, 52, 62, 65, 80, 104, 124, 130, 155, 208, 248, 260, 310, 403, 491, 496, 520, 620, 806, 982, 1040, 1240, 1612, 1964, 2015, 2455, 2480, 3224, 3928, 4030, 4910, 6383, 6448, 7856, 8060, 9820, 12766, 15221, 16120, 19640, 25532, 30442, 31915, 32240, 39280, 51064, 60884, 63830, 76105, 102128, 121768, 127660, 152210, 197873, 243536, 255320, 304420, 395746, 510640, 608840, 791492, 989365, 1217680, 1582984, 1978730, 3165968, 3957460, 7914920, 15829840]

約数ペア:

[(1, 15829840), (2, 7914920), (4, 3957460), (5, 3165968), (8, 1978730), (10, 1582984), (13, 1217680), (16, 989365), (20, 791492), (26, 608840), (31, 510640), (40, 395746), (52, 304420), (62, 255320), (65, 243536), (80, 197873), (104, 152210), (124, 127660), (130, 121768), (155, 102128), (208, 76105), (248, 63830), (260, 60884), (310, 51064), (403, 39280), (491, 32240), (496, 31915), (520, 30442), (620, 25532), (806, 19640), (982, 16120), (1040, 15221), (1240, 12766), (1612, 9820), (1964, 8060), (2015, 7856), (2455, 6448), (2480, 6383), (3224, 4910), (3928, 4030)]