281428680

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{2027}}^1$

素因数の和:2143

約数の個数: 128

約数和(自身を含む): 919900800

約数和(自身を除く): 638472120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 89, 104, 120, 130, 156, 178, 195, 260, 267, 312, 356, 390, 445, 520, 534, 712, 780, 890, 1068, 1157, 1335, 1560, 1780, 2027, 2136, 2314, 2670, 3471, 3560, 4054, 4628, 5340, 5785, 6081, 6942, 8108, 9256, 10135, 10680, 11570, 12162, 13884, 16216, 17355, 20270, 23140, 24324, 26351, 27768, 30405, 34710, 40540, 46280, 48648, 52702, 60810, 69420, 79053, 81080, 105404, 121620, 131755, 138840, 158106, 180403, 210808, 243240, 263510, 316212, 360806, 395265, 527020, 541209, 632424, 721612, 790530, 902015, 1054040, 1082418, 1443224, 1581060, 1804030, 2164836, 2345239, 2706045, 3162120, 3608060, 4329672, 4690478, 5412090, 7035717, 7216120, 9380956, 10824180, 11726195, 14071434, 18761912, 21648360, 23452390, 28142868, 35178585, 46904780, 56285736, 70357170, 93809560, 140714340, 281428680]

約数ペア:

[(1, 281428680), (2, 140714340), (3, 93809560), (4, 70357170), (5, 56285736), (6, 46904780), (8, 35178585), (10, 28142868), (12, 23452390), (13, 21648360), (15, 18761912), (20, 14071434), (24, 11726195), (26, 10824180), (30, 9380956), (39, 7216120), (40, 7035717), (52, 5412090), (60, 4690478), (65, 4329672), (78, 3608060), (89, 3162120), (104, 2706045), (120, 2345239), (130, 2164836), (156, 1804030), (178, 1581060), (195, 1443224), (260, 1082418), (267, 1054040), (312, 902015), (356, 790530), (390, 721612), (445, 632424), (520, 541209), (534, 527020), (712, 395265), (780, 360806), (890, 316212), (1068, 263510), (1157, 243240), (1335, 210808), (1560, 180403), (1780, 158106), (2027, 138840), (2136, 131755), (2314, 121620), (2670, 105404), (3471, 81080), (3560, 79053), (4054, 69420), (4628, 60810), (5340, 52702), (5785, 48648), (6081, 46280), (6942, 40540), (8108, 34710), (9256, 30405), (10135, 27768), (10680, 26351), (11570, 24324), (12162, 23140), (13884, 20270), (16216, 17355)]