4380888980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{409}}^1\times {\mathrm{3169}}^1$

素因数の和:3613

約数の個数: 72

約数和(自身を含む): 9989494200

約数和(自身を除く): 5608605220

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 409, 676, 818, 845, 1636, 1690, 2045, 3169, 3380, 4090, 5317, 6338, 8180, 10634, 12676, 15845, 21268, 26585, 31690, 41197, 53170, 63380, 69121, 82394, 106340, 138242, 164788, 205985, 276484, 345605, 411970, 535561, 691210, 823940, 1071122, 1296121, 1382420, 2142244, 2592242, 2677805, 5184484, 5355610, 6480605, 10711220, 12961210, 16849573, 25922420, 33699146, 67398292, 84247865, 168495730, 219044449, 336991460, 438088898, 876177796, 1095222245, 2190444490, 4380888980]

約数ペア:

[(1, 4380888980), (2, 2190444490), (4, 1095222245), (5, 876177796), (10, 438088898), (13, 336991460), (20, 219044449), (26, 168495730), (52, 84247865), (65, 67398292), (130, 33699146), (169, 25922420), (260, 16849573), (338, 12961210), (409, 10711220), (676, 6480605), (818, 5355610), (845, 5184484), (1636, 2677805), (1690, 2592242), (2045, 2142244), (3169, 1382420), (3380, 1296121), (4090, 1071122), (5317, 823940), (6338, 691210), (8180, 535561), (10634, 411970), (12676, 345605), (15845, 276484), (21268, 205985), (26585, 164788), (31690, 138242), (41197, 106340), (53170, 82394), (63380, 69121)]