20512101514

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{101}}^1\times {\mathrm{223}}^1\times {\mathrm{397}}^1$

素因数の和:791

約数の個数: 64

約数和(自身を含む): 33173102592

約数和(自身を除く): 12661001078

約数列:

[1, 2, 31, 37, 62, 74, 101, 202, 223, 397, 446, 794, 1147, 2294, 3131, 3737, 6262, 6913, 7474, 8251, 12307, 13826, 14689, 16502, 22523, 24614, 29378, 40097, 45046, 80194, 88531, 115847, 177062, 231694, 255781, 455359, 511562, 698213, 833351, 910718, 1243007, 1396426, 1483589, 1666702, 2486014, 2744461, 2967178, 3275647, 5488922, 6551294, 8941631, 17883262, 25833881, 45991259, 51667762, 91982518, 101545057, 203090114, 277190561, 330840347, 554381122, 661680694, 10256050757, 20512101514]

約数ペア:

[(1, 20512101514), (2, 10256050757), (31, 661680694), (37, 554381122), (62, 330840347), (74, 277190561), (101, 203090114), (202, 101545057), (223, 91982518), (397, 51667762), (446, 45991259), (794, 25833881), (1147, 17883262), (2294, 8941631), (3131, 6551294), (3737, 5488922), (6262, 3275647), (6913, 2967178), (7474, 2744461), (8251, 2486014), (12307, 1666702), (13826, 1483589), (14689, 1396426), (16502, 1243007), (22523, 910718), (24614, 833351), (29378, 698213), (40097, 511562), (45046, 455359), (80194, 255781), (88531, 231694), (115847, 177062)]