491888280

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{315313}}^1$

素因数の和:315340

約数の個数: 64

約数和(自身を含む): 1589182560

約数和(自身を除く): 1097294280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 315313, 630626, 945939, 1261252, 1576565, 1891878, 2522504, 3153130, 3783756, 4099069, 4729695, 6306260, 7567512, 8198138, 9459390, 12297207, 12612520, 16396276, 18918780, 20495345, 24594414, 32792552, 37837560, 40990690, 49188828, 61486035, 81981380, 98377656, 122972070, 163962760, 245944140, 491888280]

約数ペア:

[(1, 491888280), (2, 245944140), (3, 163962760), (4, 122972070), (5, 98377656), (6, 81981380), (8, 61486035), (10, 49188828), (12, 40990690), (13, 37837560), (15, 32792552), (20, 24594414), (24, 20495345), (26, 18918780), (30, 16396276), (39, 12612520), (40, 12297207), (52, 9459390), (60, 8198138), (65, 7567512), (78, 6306260), (104, 4729695), (120, 4099069), (130, 3783756), (156, 3153130), (195, 2522504), (260, 1891878), (312, 1576565), (390, 1261252), (520, 945939), (780, 630626), (1560, 315313)]