65821980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{156719}}^1$

素因数の和:156738

約数の個数: 48

約数和(自身を含む): 210631680

約数和(自身を除く): 144809700

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 156719, 313438, 470157, 626876, 783595, 940314, 1097033, 1567190, 1880628, 2194066, 2350785, 3134380, 3291099, 4388132, 4701570, 5485165, 6582198, 9403140, 10970330, 13164396, 16455495, 21940660, 32910990, 65821980]

約数ペア:

[(1, 65821980), (2, 32910990), (3, 21940660), (4, 16455495), (5, 13164396), (6, 10970330), (7, 9403140), (10, 6582198), (12, 5485165), (14, 4701570), (15, 4388132), (20, 3291099), (21, 3134380), (28, 2350785), (30, 2194066), (35, 1880628), (42, 1567190), (60, 1097033), (70, 940314), (84, 783595), (105, 626876), (140, 470157), (210, 313438), (420, 156719)]