181589680

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{127}}^1\times {\mathrm{293}}^1$

素因数の和:494

約数の個数: 80

約数和(自身を含む): 433972224

約数和(自身を除く): 252382544

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 127, 244, 254, 293, 305, 488, 508, 586, 610, 635, 976, 1016, 1172, 1220, 1270, 1465, 2032, 2344, 2440, 2540, 2930, 4688, 4880, 5080, 5860, 7747, 10160, 11720, 15494, 17873, 23440, 30988, 35746, 37211, 38735, 61976, 71492, 74422, 77470, 89365, 123952, 142984, 148844, 154940, 178730, 186055, 285968, 297688, 309880, 357460, 372110, 595376, 619760, 714920, 744220, 1429840, 1488440, 2269871, 2976880, 4539742, 9079484, 11349355, 18158968, 22698710, 36317936, 45397420, 90794840, 181589680]

約数ペア:

[(1, 181589680), (2, 90794840), (4, 45397420), (5, 36317936), (8, 22698710), (10, 18158968), (16, 11349355), (20, 9079484), (40, 4539742), (61, 2976880), (80, 2269871), (122, 1488440), (127, 1429840), (244, 744220), (254, 714920), (293, 619760), (305, 595376), (488, 372110), (508, 357460), (586, 309880), (610, 297688), (635, 285968), (976, 186055), (1016, 178730), (1172, 154940), (1220, 148844), (1270, 142984), (1465, 123952), (2032, 89365), (2344, 77470), (2440, 74422), (2540, 71492), (2930, 61976), (4688, 38735), (4880, 37211), (5080, 35746), (5860, 30988), (7747, 23440), (10160, 17873), (11720, 15494)]