128378936

素因数分解:

$2^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{73951}}^1$

素因数の和:73995

約数の個数: 32

約数和(自身を含む): 283975680

約数和(自身を除く): 155596744

約数列:

[1, 2, 4, 7, 8, 14, 28, 31, 56, 62, 124, 217, 248, 434, 868, 1736, 73951, 147902, 295804, 517657, 591608, 1035314, 2070628, 2292481, 4141256, 4584962, 9169924, 16047367, 18339848, 32094734, 64189468, 128378936]

約数ペア:

[(1, 128378936), (2, 64189468), (4, 32094734), (7, 18339848), (8, 16047367), (14, 9169924), (28, 4584962), (31, 4141256), (56, 2292481), (62, 2070628), (124, 1035314), (217, 591608), (248, 517657), (434, 295804), (868, 147902), (1736, 73951)]