53981980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{15971}}^1$

素因数の和:16006

約数の個数: 36

約数和(自身を含む): 122760792

約数和(自身を除く): 68778812

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 845, 1690, 3380, 15971, 31942, 63884, 79855, 159710, 207623, 319420, 415246, 830492, 1038115, 2076230, 2699099, 4152460, 5398198, 10796396, 13495495, 26990990, 53981980]

約数ペア:

[(1, 53981980), (2, 26990990), (4, 13495495), (5, 10796396), (10, 5398198), (13, 4152460), (20, 2699099), (26, 2076230), (52, 1038115), (65, 830492), (130, 415246), (169, 319420), (260, 207623), (338, 159710), (676, 79855), (845, 63884), (1690, 31942), (3380, 15971)]