20296172

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{313}}^1$

素因数の和:402

約数の個数: 48

約数和(自身を含む): 40619040

約数和(自身を除く): 20322868

約数列:

[1, 2, 4, 13, 26, 29, 43, 52, 58, 86, 116, 172, 313, 377, 559, 626, 754, 1118, 1247, 1252, 1508, 2236, 2494, 4069, 4988, 8138, 9077, 13459, 16211, 16276, 18154, 26918, 32422, 36308, 53836, 64844, 118001, 174967, 236002, 349934, 390311, 472004, 699868, 780622, 1561244, 5074043, 10148086, 20296172]

約数ペア:

[(1, 20296172), (2, 10148086), (4, 5074043), (13, 1561244), (26, 780622), (29, 699868), (43, 472004), (52, 390311), (58, 349934), (86, 236002), (116, 174967), (172, 118001), (313, 64844), (377, 53836), (559, 36308), (626, 32422), (754, 26918), (1118, 18154), (1247, 16276), (1252, 16211), (1508, 13459), (2236, 9077), (2494, 8138), (4069, 4988)]