80796820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{191}}^1\times {\mathrm{1627}}^1$

素因数の和:1840

約数の個数: 48

約数和(自身を含む): 183794688

約数和(自身を除く): 102997868

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 191, 260, 382, 764, 955, 1627, 1910, 2483, 3254, 3820, 4966, 6508, 8135, 9932, 12415, 16270, 21151, 24830, 32540, 42302, 49660, 84604, 105755, 211510, 310757, 423020, 621514, 1243028, 1553785, 3107570, 4039841, 6215140, 8079682, 16159364, 20199205, 40398410, 80796820]

約数ペア:

[(1, 80796820), (2, 40398410), (4, 20199205), (5, 16159364), (10, 8079682), (13, 6215140), (20, 4039841), (26, 3107570), (52, 1553785), (65, 1243028), (130, 621514), (191, 423020), (260, 310757), (382, 211510), (764, 105755), (955, 84604), (1627, 49660), (1910, 42302), (2483, 32540), (3254, 24830), (3820, 21151), (4966, 16270), (6508, 12415), (8135, 9932)]