78271868

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{43}}^2\times {\mathrm{557}}^1$

素因数の和:666

約数の個数: 36

約数和(自身を含む): 147881160

約数和(自身を除く): 69609292

約数列:

[1, 2, 4, 19, 38, 43, 76, 86, 172, 557, 817, 1114, 1634, 1849, 2228, 3268, 3698, 7396, 10583, 21166, 23951, 35131, 42332, 47902, 70262, 95804, 140524, 455069, 910138, 1029893, 1820276, 2059786, 4119572, 19567967, 39135934, 78271868]

約数ペア:

[(1, 78271868), (2, 39135934), (4, 19567967), (19, 4119572), (38, 2059786), (43, 1820276), (76, 1029893), (86, 910138), (172, 455069), (557, 140524), (817, 95804), (1114, 70262), (1634, 47902), (1849, 42332), (2228, 35131), (3268, 23951), (3698, 21166), (7396, 10583)]