129127420

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{419}}^1\times {\mathrm{811}}^1$

素因数の和:1258

約数の個数: 48

約数和(自身を含む): 286473600

約数和(自身を除く): 157346180

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 419, 811, 838, 1622, 1676, 2095, 3244, 4055, 4190, 7961, 8110, 8380, 15409, 15922, 16220, 30818, 31844, 39805, 61636, 77045, 79610, 154090, 159220, 308180, 339809, 679618, 1359236, 1699045, 3398090, 6456371, 6796180, 12912742, 25825484, 32281855, 64563710, 129127420]

約数ペア:

[(1, 129127420), (2, 64563710), (4, 32281855), (5, 25825484), (10, 12912742), (19, 6796180), (20, 6456371), (38, 3398090), (76, 1699045), (95, 1359236), (190, 679618), (380, 339809), (419, 308180), (811, 159220), (838, 154090), (1622, 79610), (1676, 77045), (2095, 61636), (3244, 39805), (4055, 31844), (4190, 30818), (7961, 16220), (8110, 15922), (8380, 15409)]