211491920

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{107}}^1\times {\mathrm{797}}^1$

素因数の和:948

約数の個数: 80

約数和(自身を含む): 512967168

約数和(自身を除く): 301475248

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 107, 124, 155, 214, 248, 310, 428, 496, 535, 620, 797, 856, 1070, 1240, 1594, 1712, 2140, 2480, 3188, 3317, 3985, 4280, 6376, 6634, 7970, 8560, 12752, 13268, 15940, 16585, 24707, 26536, 31880, 33170, 49414, 53072, 63760, 66340, 85279, 98828, 123535, 132680, 170558, 197656, 247070, 265360, 341116, 395312, 426395, 494140, 682232, 852790, 988280, 1364464, 1705580, 1976560, 2643649, 3411160, 5287298, 6822320, 10574596, 13218245, 21149192, 26436490, 42298384, 52872980, 105745960, 211491920]

約数ペア:

[(1, 211491920), (2, 105745960), (4, 52872980), (5, 42298384), (8, 26436490), (10, 21149192), (16, 13218245), (20, 10574596), (31, 6822320), (40, 5287298), (62, 3411160), (80, 2643649), (107, 1976560), (124, 1705580), (155, 1364464), (214, 988280), (248, 852790), (310, 682232), (428, 494140), (496, 426395), (535, 395312), (620, 341116), (797, 265360), (856, 247070), (1070, 197656), (1240, 170558), (1594, 132680), (1712, 123535), (2140, 98828), (2480, 85279), (3188, 66340), (3317, 63760), (3985, 53072), (4280, 49414), (6376, 33170), (6634, 31880), (7970, 26536), (8560, 24707), (12752, 16585), (13268, 15940)]