179777680

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{1021}}^1$

素因数の和:1136

約数の個数: 80

約数和(自身を含む): 437971968

約数和(自身を除く): 258194288

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 71, 80, 124, 142, 155, 248, 284, 310, 355, 496, 568, 620, 710, 1021, 1136, 1240, 1420, 2042, 2201, 2480, 2840, 4084, 4402, 5105, 5680, 8168, 8804, 10210, 11005, 16336, 17608, 20420, 22010, 31651, 35216, 40840, 44020, 63302, 72491, 81680, 88040, 126604, 144982, 158255, 176080, 253208, 289964, 316510, 362455, 506416, 579928, 633020, 724910, 1159856, 1266040, 1449820, 2247221, 2532080, 2899640, 4494442, 5799280, 8988884, 11236105, 17977768, 22472210, 35955536, 44944420, 89888840, 179777680]

約数ペア:

[(1, 179777680), (2, 89888840), (4, 44944420), (5, 35955536), (8, 22472210), (10, 17977768), (16, 11236105), (20, 8988884), (31, 5799280), (40, 4494442), (62, 2899640), (71, 2532080), (80, 2247221), (124, 1449820), (142, 1266040), (155, 1159856), (248, 724910), (284, 633020), (310, 579928), (355, 506416), (496, 362455), (568, 316510), (620, 289964), (710, 253208), (1021, 176080), (1136, 158255), (1240, 144982), (1420, 126604), (2042, 88040), (2201, 81680), (2480, 72491), (2840, 63302), (4084, 44020), (4402, 40840), (5105, 35216), (5680, 31651), (8168, 22010), (8804, 20420), (10210, 17608), (11005, 16336)]