77919920

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{74923}}^1$

素因数の和:74949

約数の個数: 40

約数和(自身を含む): 195102096

約数和(自身を除く): 117182176

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 74923, 149846, 299692, 374615, 599384, 749230, 973999, 1198768, 1498460, 1947998, 2996920, 3895996, 4869995, 5993840, 7791992, 9739990, 15583984, 19479980, 38959960, 77919920]

約数ペア:

[(1, 77919920), (2, 38959960), (4, 19479980), (5, 15583984), (8, 9739990), (10, 7791992), (13, 5993840), (16, 4869995), (20, 3895996), (26, 2996920), (40, 1947998), (52, 1498460), (65, 1198768), (80, 973999), (104, 749230), (130, 599384), (208, 374615), (260, 299692), (520, 149846), (1040, 74923)]