20251454

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1$

素因数の和:137

約数の個数: 64

約数和(自身を含む): 37324800

約数和(自身を除く): 17073346

約数列:

[1, 2, 17, 19, 23, 29, 34, 38, 46, 47, 58, 94, 323, 391, 437, 493, 551, 646, 667, 782, 799, 874, 893, 986, 1081, 1102, 1334, 1363, 1598, 1786, 2162, 2726, 7429, 9367, 11339, 12673, 14858, 15181, 18377, 18734, 20539, 22678, 23171, 25346, 25897, 30362, 31349, 36754, 41078, 46342, 51794, 62698, 215441, 349163, 430882, 440249, 532933, 595631, 698326, 880498, 1065866, 1191262, 10125727, 20251454]

約数ペア:

[(1, 20251454), (2, 10125727), (17, 1191262), (19, 1065866), (23, 880498), (29, 698326), (34, 595631), (38, 532933), (46, 440249), (47, 430882), (58, 349163), (94, 215441), (323, 62698), (391, 51794), (437, 46342), (493, 41078), (551, 36754), (646, 31349), (667, 30362), (782, 25897), (799, 25346), (874, 23171), (893, 22678), (986, 20539), (1081, 18734), (1102, 18377), (1334, 15181), (1363, 14858), (1598, 12673), (1786, 11339), (2162, 9367), (2726, 7429)]