408109780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{911}}^1\times {\mathrm{1723}}^1$

素因数の和:2656

約数の個数: 48

約数和(自身を含む): 924505344

約数和(自身を除く): 516395564

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 911, 1723, 1822, 3446, 3644, 4555, 6892, 8615, 9110, 11843, 17230, 18220, 22399, 23686, 34460, 44798, 47372, 59215, 89596, 111995, 118430, 223990, 236860, 447980, 1569653, 3139306, 6278612, 7848265, 15696530, 20405489, 31393060, 40810978, 81621956, 102027445, 204054890, 408109780]

約数ペア:

[(1, 408109780), (2, 204054890), (4, 102027445), (5, 81621956), (10, 40810978), (13, 31393060), (20, 20405489), (26, 15696530), (52, 7848265), (65, 6278612), (130, 3139306), (260, 1569653), (911, 447980), (1723, 236860), (1822, 223990), (3446, 118430), (3644, 111995), (4555, 89596), (6892, 59215), (8615, 47372), (9110, 44798), (11843, 34460), (17230, 23686), (18220, 22399)]