81245580

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{104161}}^1$

素因数の和:104186

約数の個数: 48

約数和(自身を含む): 244989024

約数和(自身を除く): 163743444

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 104161, 208322, 312483, 416644, 520805, 624966, 1041610, 1249932, 1354093, 1562415, 2083220, 2708186, 3124830, 4062279, 5416372, 6249660, 6770465, 8124558, 13540930, 16249116, 20311395, 27081860, 40622790, 81245580]

約数ペア:

[(1, 81245580), (2, 40622790), (3, 27081860), (4, 20311395), (5, 16249116), (6, 13540930), (10, 8124558), (12, 6770465), (13, 6249660), (15, 5416372), (20, 4062279), (26, 3124830), (30, 2708186), (39, 2083220), (52, 1562415), (60, 1354093), (65, 1249932), (78, 1041610), (130, 624966), (156, 520805), (195, 416644), (260, 312483), (390, 208322), (780, 104161)]