131316920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{281}}^1\times {\mathrm{1669}}^1$

素因数の和:1968

約数の個数: 64

約数和(自身を含む): 339076800

約数和(自身を除く): 207759880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 281, 562, 1124, 1405, 1669, 1967, 2248, 2810, 3338, 3934, 5620, 6676, 7868, 8345, 9835, 11240, 11683, 13352, 15736, 16690, 19670, 23366, 33380, 39340, 46732, 58415, 66760, 78680, 93464, 116830, 233660, 467320, 468989, 937978, 1875956, 2344945, 3282923, 3751912, 4689890, 6565846, 9379780, 13131692, 16414615, 18759560, 26263384, 32829230, 65658460, 131316920]

約数ペア:

[(1, 131316920), (2, 65658460), (4, 32829230), (5, 26263384), (7, 18759560), (8, 16414615), (10, 13131692), (14, 9379780), (20, 6565846), (28, 4689890), (35, 3751912), (40, 3282923), (56, 2344945), (70, 1875956), (140, 937978), (280, 468989), (281, 467320), (562, 233660), (1124, 116830), (1405, 93464), (1669, 78680), (1967, 66760), (2248, 58415), (2810, 46732), (3338, 39340), (3934, 33380), (5620, 23366), (6676, 19670), (7868, 16690), (8345, 15736), (9835, 13352), (11240, 11683)]