25409560

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1$

素因数の和:161

約数の個数: 128

約数和(自身を含む): 68428800

約数和(自身を除く): 43019240

約数列:

[1, 2, 4, 5, 8, 10, 11, 17, 20, 22, 34, 40, 43, 44, 55, 68, 79, 85, 86, 88, 110, 136, 158, 170, 172, 187, 215, 220, 316, 340, 344, 374, 395, 430, 440, 473, 632, 680, 731, 748, 790, 860, 869, 935, 946, 1343, 1462, 1496, 1580, 1720, 1738, 1870, 1892, 2365, 2686, 2924, 3160, 3397, 3476, 3655, 3740, 3784, 4345, 4730, 5372, 5848, 6715, 6794, 6952, 7310, 7480, 8041, 8690, 9460, 10744, 13430, 13588, 14620, 14773, 16082, 16985, 17380, 18920, 26860, 27176, 29240, 29546, 32164, 33970, 34760, 37367, 40205, 53720, 57749, 59092, 64328, 67940, 73865, 74734, 80410, 115498, 118184, 135880, 147730, 149468, 160820, 186835, 230996, 288745, 295460, 298936, 321640, 373670, 461992, 577490, 590920, 635239, 747340, 1154980, 1270478, 1494680, 2309960, 2540956, 3176195, 5081912, 6352390, 12704780, 25409560]

約数ペア:

[(1, 25409560), (2, 12704780), (4, 6352390), (5, 5081912), (8, 3176195), (10, 2540956), (11, 2309960), (17, 1494680), (20, 1270478), (22, 1154980), (34, 747340), (40, 635239), (43, 590920), (44, 577490), (55, 461992), (68, 373670), (79, 321640), (85, 298936), (86, 295460), (88, 288745), (110, 230996), (136, 186835), (158, 160820), (170, 149468), (172, 147730), (187, 135880), (215, 118184), (220, 115498), (316, 80410), (340, 74734), (344, 73865), (374, 67940), (395, 64328), (430, 59092), (440, 57749), (473, 53720), (632, 40205), (680, 37367), (731, 34760), (748, 33970), (790, 32164), (860, 29546), (869, 29240), (935, 27176), (946, 26860), (1343, 18920), (1462, 17380), (1496, 16985), (1580, 16082), (1720, 14773), (1738, 14620), (1870, 13588), (1892, 13430), (2365, 10744), (2686, 9460), (2924, 8690), (3160, 8041), (3397, 7480), (3476, 7310), (3655, 6952), (3740, 6794), (3784, 6715), (4345, 5848), (4730, 5372)]