18679960

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{35923}}^1$

素因数の和:35947

約数の個数: 32

約数和(自身を含む): 45264240

約数和(自身を除く): 26584280

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 35923, 71846, 143692, 179615, 287384, 359230, 466999, 718460, 933998, 1436920, 1867996, 2334995, 3735992, 4669990, 9339980, 18679960]

約数ペア:

[(1, 18679960), (2, 9339980), (4, 4669990), (5, 3735992), (8, 2334995), (10, 1867996), (13, 1436920), (20, 933998), (26, 718460), (40, 466999), (52, 359230), (65, 287384), (104, 179615), (130, 143692), (260, 71846), (520, 35923)]