19548880

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{18797}}^1$

素因数の和:18823

約数の個数: 40

約数和(自身を含む): 48949992

約数和(自身を除く): 29401112

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 18797, 37594, 75188, 93985, 150376, 187970, 244361, 300752, 375940, 488722, 751880, 977444, 1221805, 1503760, 1954888, 2443610, 3909776, 4887220, 9774440, 19548880]

約数ペア:

[(1, 19548880), (2, 9774440), (4, 4887220), (5, 3909776), (8, 2443610), (10, 1954888), (13, 1503760), (16, 1221805), (20, 977444), (26, 751880), (40, 488722), (52, 375940), (65, 300752), (80, 244361), (104, 187970), (130, 150376), (208, 93985), (260, 75188), (520, 37594), (1040, 18797)]