638615726

素因数分解:

$2^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{5119}}^1$

素因数の和:5221

約数の個数: 48

約数和(自身を含む): 1190707200

約数和(自身を除く): 552091474

約数列:

[1, 2, 7, 14, 19, 38, 49, 67, 98, 133, 134, 266, 469, 931, 938, 1273, 1862, 2546, 3283, 5119, 6566, 8911, 10238, 17822, 35833, 62377, 71666, 97261, 124754, 194522, 250831, 342973, 501662, 680827, 685946, 1361654, 2400811, 4765789, 4801622, 6516487, 9531578, 13032974, 16805677, 33611354, 45615409, 91230818, 319307863, 638615726]

約数ペア:

[(1, 638615726), (2, 319307863), (7, 91230818), (14, 45615409), (19, 33611354), (38, 16805677), (49, 13032974), (67, 9531578), (98, 6516487), (133, 4801622), (134, 4765789), (266, 2400811), (469, 1361654), (931, 685946), (938, 680827), (1273, 501662), (1862, 342973), (2546, 250831), (3283, 194522), (5119, 124754), (6566, 97261), (8911, 71666), (10238, 62377), (17822, 35833)]