19790280

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{54973}}^1$

素因数の和:54990

約数の個数: 48

約数和(自身を含む): 64319580

約数和(自身を除く): 44529300

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 54973, 109946, 164919, 219892, 274865, 329838, 439784, 494757, 549730, 659676, 824595, 989514, 1099460, 1319352, 1649190, 1979028, 2198920, 2473785, 3298380, 3958056, 4947570, 6596760, 9895140, 19790280]

約数ペア:

[(1, 19790280), (2, 9895140), (3, 6596760), (4, 4947570), (5, 3958056), (6, 3298380), (8, 2473785), (9, 2198920), (10, 1979028), (12, 1649190), (15, 1319352), (18, 1099460), (20, 989514), (24, 824595), (30, 659676), (36, 549730), (40, 494757), (45, 439784), (60, 329838), (72, 274865), (90, 219892), (120, 164919), (180, 109946), (360, 54973)]