820423681

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{557}}^1$

素因数の和:670

約数の個数: 48

約数和(自身を含む): 1082930688

約数和(自身を除く): 262507007

約数列:

[1, 7, 11, 37, 47, 77, 121, 259, 329, 407, 517, 557, 847, 1739, 2849, 3619, 3899, 4477, 5687, 6127, 12173, 19129, 20609, 26179, 31339, 39809, 42889, 67397, 133903, 144263, 183253, 210419, 226699, 287969, 471779, 968623, 1472933, 1586893, 2015783, 2493689, 3167659, 6780361, 10654853, 17455823, 22173613, 74583971, 117203383, 820423681]

約数ペア:

[(1, 820423681), (7, 117203383), (11, 74583971), (37, 22173613), (47, 17455823), (77, 10654853), (121, 6780361), (259, 3167659), (329, 2493689), (407, 2015783), (517, 1586893), (557, 1472933), (847, 968623), (1739, 471779), (2849, 287969), (3619, 226699), (3899, 210419), (4477, 183253), (5687, 144263), (6127, 133903), (12173, 67397), (19129, 42889), (20609, 39809), (26179, 31339)]