42490280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{263}}^1\times {\mathrm{577}}^1$

素因数の和:858

約数の個数: 64

約数和(自身を含む): 109866240

約数和(自身を除く): 67375960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 263, 280, 526, 577, 1052, 1154, 1315, 1841, 2104, 2308, 2630, 2885, 3682, 4039, 4616, 5260, 5770, 7364, 8078, 9205, 10520, 11540, 14728, 16156, 18410, 20195, 23080, 32312, 36820, 40390, 73640, 80780, 151751, 161560, 303502, 607004, 758755, 1062257, 1214008, 1517510, 2124514, 3035020, 4249028, 5311285, 6070040, 8498056, 10622570, 21245140, 42490280]

約数ペア:

[(1, 42490280), (2, 21245140), (4, 10622570), (5, 8498056), (7, 6070040), (8, 5311285), (10, 4249028), (14, 3035020), (20, 2124514), (28, 1517510), (35, 1214008), (40, 1062257), (56, 758755), (70, 607004), (140, 303502), (263, 161560), (280, 151751), (526, 80780), (577, 73640), (1052, 40390), (1154, 36820), (1315, 32312), (1841, 23080), (2104, 20195), (2308, 18410), (2630, 16156), (2885, 14728), (3682, 11540), (4039, 10520), (4616, 9205), (5260, 8078), (5770, 7364)]