80946820

素因数分解:

$2^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{181}}^1\times {\mathrm{379}}^1$

素因数の和:628

約数の個数: 48

約数和(自身を含む): 174283200

約数和(自身を除く): 93336380

約数列:

[1, 2, 4, 5, 10, 20, 59, 118, 181, 236, 295, 362, 379, 590, 724, 758, 905, 1180, 1516, 1810, 1895, 3620, 3790, 7580, 10679, 21358, 22361, 42716, 44722, 53395, 68599, 89444, 106790, 111805, 137198, 213580, 223610, 274396, 342995, 447220, 685990, 1371980, 4047341, 8094682, 16189364, 20236705, 40473410, 80946820]

約数ペア:

[(1, 80946820), (2, 40473410), (4, 20236705), (5, 16189364), (10, 8094682), (20, 4047341), (59, 1371980), (118, 685990), (181, 447220), (236, 342995), (295, 274396), (362, 223610), (379, 213580), (590, 137198), (724, 111805), (758, 106790), (905, 89444), (1180, 68599), (1516, 53395), (1810, 44722), (1895, 42716), (3620, 22361), (3790, 21358), (7580, 10679)]