20525505

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1367}}^1$

素因数の和:1406

約数の個数: 64

約数和(自身を含む): 44126208

約数和(自身を除く): 23600703

約数列:

[1, 3, 5, 7, 11, 13, 15, 21, 33, 35, 39, 55, 65, 77, 91, 105, 143, 165, 195, 231, 273, 385, 429, 455, 715, 1001, 1155, 1365, 1367, 2145, 3003, 4101, 5005, 6835, 9569, 15015, 15037, 17771, 20505, 28707, 45111, 47845, 53313, 75185, 88855, 105259, 124397, 143535, 195481, 225555, 266565, 315777, 373191, 526295, 586443, 621985, 977405, 1368367, 1578885, 1865955, 2932215, 4105101, 6841835, 20525505]

約数ペア:

[(1, 20525505), (3, 6841835), (5, 4105101), (7, 2932215), (11, 1865955), (13, 1578885), (15, 1368367), (21, 977405), (33, 621985), (35, 586443), (39, 526295), (55, 373191), (65, 315777), (77, 266565), (91, 225555), (105, 195481), (143, 143535), (165, 124397), (195, 105259), (231, 88855), (273, 75185), (385, 53313), (429, 47845), (455, 45111), (715, 28707), (1001, 20505), (1155, 17771), (1365, 15037), (1367, 15015), (2145, 9569), (3003, 6835), (4101, 5005)]