20186080

素因数分解:

$2^5\times 5^1\times {\mathrm{79}}^1\times {\mathrm{1597}}^1$

素因数の和:1691

約数の個数: 48

約数和(自身を含む): 48323520

約数和(自身を除く): 28137440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 79, 80, 158, 160, 316, 395, 632, 790, 1264, 1580, 1597, 2528, 3160, 3194, 6320, 6388, 7985, 12640, 12776, 15970, 25552, 31940, 51104, 63880, 126163, 127760, 252326, 255520, 504652, 630815, 1009304, 1261630, 2018608, 2523260, 4037216, 5046520, 10093040, 20186080]

約数ペア:

[(1, 20186080), (2, 10093040), (4, 5046520), (5, 4037216), (8, 2523260), (10, 2018608), (16, 1261630), (20, 1009304), (32, 630815), (40, 504652), (79, 255520), (80, 252326), (158, 127760), (160, 126163), (316, 63880), (395, 51104), (632, 31940), (790, 25552), (1264, 15970), (1580, 12776), (1597, 12640), (2528, 7985), (3160, 6388), (3194, 6320)]