31612880

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{269}}^1$

素因数の和:408

約数の個数: 80

約数和(自身を含む): 80151120

約数和(自身を除く): 48538240

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 113, 130, 208, 226, 260, 269, 452, 520, 538, 565, 904, 1040, 1076, 1130, 1345, 1469, 1808, 2152, 2260, 2690, 2938, 3497, 4304, 4520, 5380, 5876, 6994, 7345, 9040, 10760, 11752, 13988, 14690, 17485, 21520, 23504, 27976, 29380, 30397, 34970, 55952, 58760, 60794, 69940, 117520, 121588, 139880, 151985, 243176, 279760, 303970, 395161, 486352, 607940, 790322, 1215880, 1580644, 1975805, 2431760, 3161288, 3951610, 6322576, 7903220, 15806440, 31612880]

約数ペア:

[(1, 31612880), (2, 15806440), (4, 7903220), (5, 6322576), (8, 3951610), (10, 3161288), (13, 2431760), (16, 1975805), (20, 1580644), (26, 1215880), (40, 790322), (52, 607940), (65, 486352), (80, 395161), (104, 303970), (113, 279760), (130, 243176), (208, 151985), (226, 139880), (260, 121588), (269, 117520), (452, 69940), (520, 60794), (538, 58760), (565, 55952), (904, 34970), (1040, 30397), (1076, 29380), (1130, 27976), (1345, 23504), (1469, 21520), (1808, 17485), (2152, 14690), (2260, 13988), (2690, 11752), (2938, 10760), (3497, 9040), (4304, 7345), (4520, 6994), (5380, 5876)]