1640956880

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{701}}^1\times {\mathrm{1009}}^1$

素因数の和:1752

約数の個数: 80

約数和(自身を含む): 3956331600

約数和(自身を除く): 2315374720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 80, 116, 145, 232, 290, 464, 580, 701, 1009, 1160, 1402, 2018, 2320, 2804, 3505, 4036, 5045, 5608, 7010, 8072, 10090, 11216, 14020, 16144, 20180, 20329, 28040, 29261, 40360, 40658, 56080, 58522, 80720, 81316, 101645, 117044, 146305, 162632, 203290, 234088, 292610, 325264, 406580, 468176, 585220, 707309, 813160, 1170440, 1414618, 1626320, 2340880, 2829236, 3536545, 5658472, 7073090, 11316944, 14146180, 20511961, 28292360, 41023922, 56584720, 82047844, 102559805, 164095688, 205119610, 328191376, 410239220, 820478440, 1640956880]

約数ペア:

[(1, 1640956880), (2, 820478440), (4, 410239220), (5, 328191376), (8, 205119610), (10, 164095688), (16, 102559805), (20, 82047844), (29, 56584720), (40, 41023922), (58, 28292360), (80, 20511961), (116, 14146180), (145, 11316944), (232, 7073090), (290, 5658472), (464, 3536545), (580, 2829236), (701, 2340880), (1009, 1626320), (1160, 1414618), (1402, 1170440), (2018, 813160), (2320, 707309), (2804, 585220), (3505, 468176), (4036, 406580), (5045, 325264), (5608, 292610), (7010, 234088), (8072, 203290), (10090, 162632), (11216, 146305), (14020, 117044), (16144, 101645), (20180, 81316), (20329, 80720), (28040, 58522), (29261, 56080), (40360, 40658)]