81398640

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{339161}}^1$

素因数の和:339177

約数の個数: 40

約数和(自身を含む): 252336528

約数和(自身を除く): 170937888

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 339161, 678322, 1017483, 1356644, 1695805, 2034966, 2713288, 3391610, 4069932, 5087415, 5426576, 6783220, 8139864, 10174830, 13566440, 16279728, 20349660, 27132880, 40699320, 81398640]

約数ペア:

[(1, 81398640), (2, 40699320), (3, 27132880), (4, 20349660), (5, 16279728), (6, 13566440), (8, 10174830), (10, 8139864), (12, 6783220), (15, 5426576), (16, 5087415), (20, 4069932), (24, 3391610), (30, 2713288), (40, 2034966), (48, 1695805), (60, 1356644), (80, 1017483), (120, 678322), (240, 339161)]