268704280

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{211}}^1$

素因数の和:345

約数の個数: 128

約数和(自身を含む): 683827200

約数和(自身を除く): 415122920

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 52, 62, 65, 79, 104, 124, 130, 155, 158, 211, 248, 260, 310, 316, 395, 403, 422, 520, 620, 632, 790, 806, 844, 1027, 1055, 1240, 1580, 1612, 1688, 2015, 2054, 2110, 2449, 2743, 3160, 3224, 4030, 4108, 4220, 4898, 5135, 5486, 6541, 8060, 8216, 8440, 9796, 10270, 10972, 12245, 13082, 13715, 16120, 16669, 19592, 20540, 21944, 24490, 26164, 27430, 31837, 32705, 33338, 41080, 48980, 52328, 54860, 63674, 65410, 66676, 83345, 85033, 97960, 109720, 127348, 130820, 133352, 159185, 166690, 170066, 216697, 254696, 261640, 318370, 333380, 340132, 425165, 433394, 516739, 636740, 666760, 680264, 850330, 866788, 1033478, 1083485, 1273480, 1700660, 1733576, 2066956, 2166970, 2583695, 3401320, 4133912, 4333940, 5167390, 6717607, 8667880, 10334780, 13435214, 20669560, 26870428, 33588035, 53740856, 67176070, 134352140, 268704280]

約数ペア:

[(1, 268704280), (2, 134352140), (4, 67176070), (5, 53740856), (8, 33588035), (10, 26870428), (13, 20669560), (20, 13435214), (26, 10334780), (31, 8667880), (40, 6717607), (52, 5167390), (62, 4333940), (65, 4133912), (79, 3401320), (104, 2583695), (124, 2166970), (130, 2066956), (155, 1733576), (158, 1700660), (211, 1273480), (248, 1083485), (260, 1033478), (310, 866788), (316, 850330), (395, 680264), (403, 666760), (422, 636740), (520, 516739), (620, 433394), (632, 425165), (790, 340132), (806, 333380), (844, 318370), (1027, 261640), (1055, 254696), (1240, 216697), (1580, 170066), (1612, 166690), (1688, 159185), (2015, 133352), (2054, 130820), (2110, 127348), (2449, 109720), (2743, 97960), (3160, 85033), (3224, 83345), (4030, 66676), (4108, 65410), (4220, 63674), (4898, 54860), (5135, 52328), (5486, 48980), (6541, 41080), (8060, 33338), (8216, 32705), (8440, 31837), (9796, 27430), (10270, 26164), (10972, 24490), (12245, 21944), (13082, 20540), (13715, 19592), (16120, 16669)]