20197780295

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{571}}^1\times {\mathrm{1163}}^1$

素因数の和:1836

約数の個数: 64

約数和(自身を含む): 30680432640

約数和(自身を除く): 10482652345

約数列:

[1, 5, 7, 11, 35, 55, 77, 79, 385, 395, 553, 571, 869, 1163, 2765, 2855, 3997, 4345, 5815, 6083, 6281, 8141, 12793, 19985, 30415, 31405, 40705, 43967, 45109, 63965, 89551, 91877, 219835, 225545, 315763, 447755, 459385, 496199, 643139, 664073, 1010647, 1578815, 2480995, 3215695, 3320365, 3473393, 4648511, 5053235, 7074529, 7304803, 17366965, 23242555, 35372645, 36524015, 51133621, 52461767, 255668105, 262308835, 367232369, 577079437, 1836161845, 2885397185, 4039556059, 20197780295]

約数ペア:

[(1, 20197780295), (5, 4039556059), (7, 2885397185), (11, 1836161845), (35, 577079437), (55, 367232369), (77, 262308835), (79, 255668105), (385, 52461767), (395, 51133621), (553, 36524015), (571, 35372645), (869, 23242555), (1163, 17366965), (2765, 7304803), (2855, 7074529), (3997, 5053235), (4345, 4648511), (5815, 3473393), (6083, 3320365), (6281, 3215695), (8141, 2480995), (12793, 1578815), (19985, 1010647), (30415, 664073), (31405, 643139), (40705, 496199), (43967, 459385), (45109, 447755), (63965, 315763), (89551, 225545), (91877, 219835)]