625278680

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{491}}^1$

素因数の和:625

約数の個数: 128

約数和(自身を含む): 1586995200

約数和(自身を除く): 961716520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 52, 62, 65, 79, 104, 124, 130, 155, 158, 248, 260, 310, 316, 395, 403, 491, 520, 620, 632, 790, 806, 982, 1027, 1240, 1580, 1612, 1964, 2015, 2054, 2449, 2455, 3160, 3224, 3928, 4030, 4108, 4898, 4910, 5135, 6383, 8060, 8216, 9796, 9820, 10270, 12245, 12766, 15221, 16120, 19592, 19640, 20540, 24490, 25532, 30442, 31837, 31915, 38789, 41080, 48980, 51064, 60884, 63674, 63830, 76105, 77578, 97960, 121768, 127348, 127660, 152210, 155156, 159185, 193945, 197873, 254696, 255320, 304420, 310312, 318370, 387890, 395746, 504257, 608840, 636740, 775780, 791492, 989365, 1008514, 1202459, 1273480, 1551560, 1582984, 1978730, 2017028, 2404918, 2521285, 3957460, 4034056, 4809836, 5042570, 6012295, 7914920, 9619672, 10085140, 12024590, 15631967, 20170280, 24049180, 31263934, 48098360, 62527868, 78159835, 125055736, 156319670, 312639340, 625278680]

約数ペア:

[(1, 625278680), (2, 312639340), (4, 156319670), (5, 125055736), (8, 78159835), (10, 62527868), (13, 48098360), (20, 31263934), (26, 24049180), (31, 20170280), (40, 15631967), (52, 12024590), (62, 10085140), (65, 9619672), (79, 7914920), (104, 6012295), (124, 5042570), (130, 4809836), (155, 4034056), (158, 3957460), (248, 2521285), (260, 2404918), (310, 2017028), (316, 1978730), (395, 1582984), (403, 1551560), (491, 1273480), (520, 1202459), (620, 1008514), (632, 989365), (790, 791492), (806, 775780), (982, 636740), (1027, 608840), (1240, 504257), (1580, 395746), (1612, 387890), (1964, 318370), (2015, 310312), (2054, 304420), (2449, 255320), (2455, 254696), (3160, 197873), (3224, 193945), (3928, 159185), (4030, 155156), (4108, 152210), (4898, 127660), (4910, 127348), (5135, 121768), (6383, 97960), (8060, 77578), (8216, 76105), (9796, 63830), (9820, 63674), (10270, 60884), (12245, 51064), (12766, 48980), (15221, 41080), (16120, 38789), (19592, 31915), (19640, 31837), (20540, 30442), (24490, 25532)]