20436540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{7247}}^1$

素因数の和:7306

約数の個数: 48

約数和(自身を含む): 58447872

約数和(自身を除く): 38011332

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 47, 60, 94, 141, 188, 235, 282, 470, 564, 705, 940, 1410, 2820, 7247, 14494, 21741, 28988, 36235, 43482, 72470, 86964, 108705, 144940, 217410, 340609, 434820, 681218, 1021827, 1362436, 1703045, 2043654, 3406090, 4087308, 5109135, 6812180, 10218270, 20436540]

約数ペア:

[(1, 20436540), (2, 10218270), (3, 6812180), (4, 5109135), (5, 4087308), (6, 3406090), (10, 2043654), (12, 1703045), (15, 1362436), (20, 1021827), (30, 681218), (47, 434820), (60, 340609), (94, 217410), (141, 144940), (188, 108705), (235, 86964), (282, 72470), (470, 43482), (564, 36235), (705, 28988), (940, 21741), (1410, 14494), (2820, 7247)]