80086900

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{691}}^1$

素因数の和:785

約数の個数: 72

約数和(自身を含む): 186203360

約数和(自身を除く): 106116460

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 61, 76, 95, 100, 122, 190, 244, 305, 380, 475, 610, 691, 950, 1159, 1220, 1382, 1525, 1900, 2318, 2764, 3050, 3455, 4636, 5795, 6100, 6910, 11590, 13129, 13820, 17275, 23180, 26258, 28975, 34550, 42151, 52516, 57950, 65645, 69100, 84302, 115900, 131290, 168604, 210755, 262580, 328225, 421510, 656450, 800869, 843020, 1053775, 1312900, 1601738, 2107550, 3203476, 4004345, 4215100, 8008690, 16017380, 20021725, 40043450, 80086900]

約数ペア:

[(1, 80086900), (2, 40043450), (4, 20021725), (5, 16017380), (10, 8008690), (19, 4215100), (20, 4004345), (25, 3203476), (38, 2107550), (50, 1601738), (61, 1312900), (76, 1053775), (95, 843020), (100, 800869), (122, 656450), (190, 421510), (244, 328225), (305, 262580), (380, 210755), (475, 168604), (610, 131290), (691, 115900), (950, 84302), (1159, 69100), (1220, 65645), (1382, 57950), (1525, 52516), (1900, 42151), (2318, 34550), (2764, 28975), (3050, 26258), (3455, 23180), (4636, 17275), (5795, 13820), (6100, 13129), (6910, 11590)]