1561420798

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{191}}^1\times {\mathrm{421}}^1$

素因数の和:713

約数の個数: 64

約数和(自身を含む): 2877972480

約数和(自身を除く): 1316551682

約数列:

[1, 2, 7, 14, 19, 38, 73, 133, 146, 191, 266, 382, 421, 511, 842, 1022, 1337, 1387, 2674, 2774, 2947, 3629, 5894, 7258, 7999, 9709, 13943, 15998, 19418, 25403, 27886, 30733, 50806, 55993, 61466, 80411, 97601, 111986, 160822, 195202, 215131, 264917, 430262, 529834, 562877, 583927, 1125754, 1167854, 1527809, 1854419, 3055618, 3708838, 4087489, 5870003, 8174978, 10694663, 11740006, 21389326, 41090021, 82180042, 111530057, 223060114, 780710399, 1561420798]

約数ペア:

[(1, 1561420798), (2, 780710399), (7, 223060114), (14, 111530057), (19, 82180042), (38, 41090021), (73, 21389326), (133, 11740006), (146, 10694663), (191, 8174978), (266, 5870003), (382, 4087489), (421, 3708838), (511, 3055618), (842, 1854419), (1022, 1527809), (1337, 1167854), (1387, 1125754), (2674, 583927), (2774, 562877), (2947, 529834), (3629, 430262), (5894, 264917), (7258, 215131), (7999, 195202), (9709, 160822), (13943, 111986), (15998, 97601), (19418, 80411), (25403, 61466), (27886, 55993), (30733, 50806)]