81430856

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{577}}^1$

素因数の和:678

約数の個数: 64

約数和(自身を含む): 174787200

約数和(自身を除く): 93356344

約数列:

[1, 2, 4, 8, 13, 23, 26, 46, 52, 59, 92, 104, 118, 184, 236, 299, 472, 577, 598, 767, 1154, 1196, 1357, 1534, 2308, 2392, 2714, 3068, 4616, 5428, 6136, 7501, 10856, 13271, 15002, 17641, 26542, 30004, 34043, 35282, 53084, 60008, 68086, 70564, 106168, 136172, 141128, 172523, 272344, 345046, 442559, 690092, 782989, 885118, 1380184, 1565978, 1770236, 3131956, 3540472, 6263912, 10178857, 20357714, 40715428, 81430856]

約数ペア:

[(1, 81430856), (2, 40715428), (4, 20357714), (8, 10178857), (13, 6263912), (23, 3540472), (26, 3131956), (46, 1770236), (52, 1565978), (59, 1380184), (92, 885118), (104, 782989), (118, 690092), (184, 442559), (236, 345046), (299, 272344), (472, 172523), (577, 141128), (598, 136172), (767, 106168), (1154, 70564), (1196, 68086), (1357, 60008), (1534, 53084), (2308, 35282), (2392, 34043), (2714, 30004), (3068, 26542), (4616, 17641), (5428, 15002), (6136, 13271), (7501, 10856)]