641566808

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{181}}^1\times {\mathrm{389}}^1$

素因数の和:660

約数の個数: 64

約数和(自身を含む): 1303192800

約数和(自身を除く): 661625992

約数列:

[1, 2, 4, 8, 17, 34, 67, 68, 134, 136, 181, 268, 362, 389, 536, 724, 778, 1139, 1448, 1556, 2278, 3077, 3112, 4556, 6154, 6613, 9112, 12127, 12308, 13226, 24254, 24616, 26063, 26452, 48508, 52126, 52904, 70409, 97016, 104252, 140818, 206159, 208504, 281636, 412318, 443071, 563272, 824636, 886142, 1196953, 1649272, 1772284, 2393906, 3544568, 4717403, 4787812, 9434806, 9575624, 18869612, 37739224, 80195851, 160391702, 320783404, 641566808]

約数ペア:

[(1, 641566808), (2, 320783404), (4, 160391702), (8, 80195851), (17, 37739224), (34, 18869612), (67, 9575624), (68, 9434806), (134, 4787812), (136, 4717403), (181, 3544568), (268, 2393906), (362, 1772284), (389, 1649272), (536, 1196953), (724, 886142), (778, 824636), (1139, 563272), (1448, 443071), (1556, 412318), (2278, 281636), (3077, 208504), (3112, 206159), (4556, 140818), (6154, 104252), (6613, 97016), (9112, 70409), (12127, 52904), (12308, 52126), (13226, 48508), (24254, 26452), (24616, 26063)]