81025750

素因数分解:

$2^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{233}}^1$

素因数の和:370

約数の個数: 64

約数和(自身を含む): 165582144

約数和(自身を除く): 84556394

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 107, 125, 130, 214, 233, 250, 325, 466, 535, 650, 1070, 1165, 1391, 1625, 2330, 2675, 2782, 3029, 3250, 5350, 5825, 6058, 6955, 11650, 13375, 13910, 15145, 24931, 26750, 29125, 30290, 34775, 49862, 58250, 69550, 75725, 124655, 151450, 173875, 249310, 324103, 347750, 378625, 623275, 648206, 757250, 1246550, 1620515, 3116375, 3241030, 6232750, 8102575, 16205150, 40512875, 81025750]

約数ペア:

[(1, 81025750), (2, 40512875), (5, 16205150), (10, 8102575), (13, 6232750), (25, 3241030), (26, 3116375), (50, 1620515), (65, 1246550), (107, 757250), (125, 648206), (130, 623275), (214, 378625), (233, 347750), (250, 324103), (325, 249310), (466, 173875), (535, 151450), (650, 124655), (1070, 75725), (1165, 69550), (1391, 58250), (1625, 49862), (2330, 34775), (2675, 30290), (2782, 29125), (3029, 26750), (3250, 24931), (5350, 15145), (5825, 13910), (6058, 13375), (6955, 11650)]