1311857540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{557}}^1\times {\mathrm{16823}}^1$

素因数の和:17396

約数の個数: 48

約数和(自身を含む): 3154298112

約数和(自身を除く): 1842440572

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 557, 1114, 2228, 2785, 3899, 5570, 7798, 11140, 15596, 16823, 19495, 33646, 38990, 67292, 77980, 84115, 117761, 168230, 235522, 336460, 471044, 588805, 1177610, 2355220, 9370411, 18740822, 37481644, 46852055, 65592877, 93704110, 131185754, 187408220, 262371508, 327964385, 655928770, 1311857540]

約数ペア:

[(1, 1311857540), (2, 655928770), (4, 327964385), (5, 262371508), (7, 187408220), (10, 131185754), (14, 93704110), (20, 65592877), (28, 46852055), (35, 37481644), (70, 18740822), (140, 9370411), (557, 2355220), (1114, 1177610), (2228, 588805), (2785, 471044), (3899, 336460), (5570, 235522), (7798, 168230), (11140, 117761), (15596, 84115), (16823, 77980), (19495, 67292), (33646, 38990)]