31400920

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{523}}^1$

素因数の和:632

約数の個数: 64

約数和(自身を含む): 75456000

約数和(自身を除く): 44055080

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 79, 95, 152, 158, 190, 316, 380, 395, 523, 632, 760, 790, 1046, 1501, 1580, 2092, 2615, 3002, 3160, 4184, 5230, 6004, 7505, 9937, 10460, 12008, 15010, 19874, 20920, 30020, 39748, 41317, 49685, 60040, 79496, 82634, 99370, 165268, 198740, 206585, 330536, 397480, 413170, 785023, 826340, 1570046, 1652680, 3140092, 3925115, 6280184, 7850230, 15700460, 31400920]

約数ペア:

[(1, 31400920), (2, 15700460), (4, 7850230), (5, 6280184), (8, 3925115), (10, 3140092), (19, 1652680), (20, 1570046), (38, 826340), (40, 785023), (76, 413170), (79, 397480), (95, 330536), (152, 206585), (158, 198740), (190, 165268), (316, 99370), (380, 82634), (395, 79496), (523, 60040), (632, 49685), (760, 41317), (790, 39748), (1046, 30020), (1501, 20920), (1580, 19874), (2092, 15010), (2615, 12008), (3002, 10460), (3160, 9937), (4184, 7505), (5230, 6004)]