262857100

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{1213}}^1$

素因数の和:1435

約数の個数: 72

約数和(自身を含む): 625928688

約数和(自身を除く): 363071588

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 197, 220, 275, 394, 550, 788, 985, 1100, 1213, 1970, 2167, 2426, 3940, 4334, 4852, 4925, 6065, 8668, 9850, 10835, 12130, 13343, 19700, 21670, 24260, 26686, 30325, 43340, 53372, 54175, 60650, 66715, 108350, 121300, 133430, 216700, 238961, 266860, 333575, 477922, 667150, 955844, 1194805, 1334300, 2389610, 2628571, 4779220, 5257142, 5974025, 10514284, 11948050, 13142855, 23896100, 26285710, 52571420, 65714275, 131428550, 262857100]

約数ペア:

[(1, 262857100), (2, 131428550), (4, 65714275), (5, 52571420), (10, 26285710), (11, 23896100), (20, 13142855), (22, 11948050), (25, 10514284), (44, 5974025), (50, 5257142), (55, 4779220), (100, 2628571), (110, 2389610), (197, 1334300), (220, 1194805), (275, 955844), (394, 667150), (550, 477922), (788, 333575), (985, 266860), (1100, 238961), (1213, 216700), (1970, 133430), (2167, 121300), (2426, 108350), (3940, 66715), (4334, 60650), (4852, 54175), (4925, 53372), (6065, 43340), (8668, 30325), (9850, 26686), (10835, 24260), (12130, 21670), (13343, 19700)]