21742160

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{797}}^1$

素因数の和:852

約数の個数: 80

約数和(自身を含む): 56996352

約数和(自身を除く): 35254192

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 31, 40, 44, 55, 62, 80, 88, 110, 124, 155, 176, 220, 248, 310, 341, 440, 496, 620, 682, 797, 880, 1240, 1364, 1594, 1705, 2480, 2728, 3188, 3410, 3985, 5456, 6376, 6820, 7970, 8767, 12752, 13640, 15940, 17534, 24707, 27280, 31880, 35068, 43835, 49414, 63760, 70136, 87670, 98828, 123535, 140272, 175340, 197656, 247070, 271777, 350680, 395312, 494140, 543554, 701360, 988280, 1087108, 1358885, 1976560, 2174216, 2717770, 4348432, 5435540, 10871080, 21742160]

約数ペア:

[(1, 21742160), (2, 10871080), (4, 5435540), (5, 4348432), (8, 2717770), (10, 2174216), (11, 1976560), (16, 1358885), (20, 1087108), (22, 988280), (31, 701360), (40, 543554), (44, 494140), (55, 395312), (62, 350680), (80, 271777), (88, 247070), (110, 197656), (124, 175340), (155, 140272), (176, 123535), (220, 98828), (248, 87670), (310, 70136), (341, 63760), (440, 49414), (496, 43835), (620, 35068), (682, 31880), (797, 27280), (880, 24707), (1240, 17534), (1364, 15940), (1594, 13640), (1705, 12752), (2480, 8767), (2728, 7970), (3188, 6820), (3410, 6376), (3985, 5456)]