638414260

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{211}}^1\times {\mathrm{809}}^1$

素因数の和:1057

約数の個数: 96

約数和(自身を含む): 1557843840

約数和(自身を除く): 919429580

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 34, 44, 55, 68, 85, 110, 170, 187, 211, 220, 340, 374, 422, 748, 809, 844, 935, 1055, 1618, 1870, 2110, 2321, 3236, 3587, 3740, 4045, 4220, 4642, 7174, 8090, 8899, 9284, 11605, 13753, 14348, 16180, 17798, 17935, 23210, 27506, 35596, 35870, 39457, 44495, 46420, 55012, 68765, 71740, 78914, 88990, 137530, 151283, 157828, 170699, 177980, 197285, 275060, 302566, 341398, 394570, 605132, 682796, 756415, 789140, 853495, 1512830, 1706990, 1877689, 2901883, 3025660, 3413980, 3755378, 5803766, 7510756, 9388445, 11607532, 14509415, 18776890, 29018830, 31920713, 37553780, 58037660, 63841426, 127682852, 159603565, 319207130, 638414260]

約数ペア:

[(1, 638414260), (2, 319207130), (4, 159603565), (5, 127682852), (10, 63841426), (11, 58037660), (17, 37553780), (20, 31920713), (22, 29018830), (34, 18776890), (44, 14509415), (55, 11607532), (68, 9388445), (85, 7510756), (110, 5803766), (170, 3755378), (187, 3413980), (211, 3025660), (220, 2901883), (340, 1877689), (374, 1706990), (422, 1512830), (748, 853495), (809, 789140), (844, 756415), (935, 682796), (1055, 605132), (1618, 394570), (1870, 341398), (2110, 302566), (2321, 275060), (3236, 197285), (3587, 177980), (3740, 170699), (4045, 157828), (4220, 151283), (4642, 137530), (7174, 88990), (8090, 78914), (8899, 71740), (9284, 68765), (11605, 55012), (13753, 46420), (14348, 44495), (16180, 39457), (17798, 35870), (17935, 35596), (23210, 27506)]