8449840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{191}}^1$

素因数の和:290

約数の個数: 80

約数和(自身を含む): 22855680

約数和(自身を除く): 14405840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 79, 80, 112, 140, 158, 191, 280, 316, 382, 395, 553, 560, 632, 764, 790, 955, 1106, 1264, 1337, 1528, 1580, 1910, 2212, 2674, 2765, 3056, 3160, 3820, 4424, 5348, 5530, 6320, 6685, 7640, 8848, 10696, 11060, 13370, 15089, 15280, 21392, 22120, 26740, 30178, 44240, 53480, 60356, 75445, 105623, 106960, 120712, 150890, 211246, 241424, 301780, 422492, 528115, 603560, 844984, 1056230, 1207120, 1689968, 2112460, 4224920, 8449840]

約数ペア:

[(1, 8449840), (2, 4224920), (4, 2112460), (5, 1689968), (7, 1207120), (8, 1056230), (10, 844984), (14, 603560), (16, 528115), (20, 422492), (28, 301780), (35, 241424), (40, 211246), (56, 150890), (70, 120712), (79, 106960), (80, 105623), (112, 75445), (140, 60356), (158, 53480), (191, 44240), (280, 30178), (316, 26740), (382, 22120), (395, 21392), (553, 15280), (560, 15089), (632, 13370), (764, 11060), (790, 10696), (955, 8848), (1106, 7640), (1264, 6685), (1337, 6320), (1528, 5530), (1580, 5348), (1910, 4424), (2212, 3820), (2674, 3160), (2765, 3056)]