78901780

素因数分解:

$2^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{24203}}^1$

素因数の和:24375

約数の個数: 24

約数和(自身を含む): 166717152

約数和(自身を除く): 87815372

約数列:

[1, 2, 4, 5, 10, 20, 163, 326, 652, 815, 1630, 3260, 24203, 48406, 96812, 121015, 242030, 484060, 3945089, 7890178, 15780356, 19725445, 39450890, 78901780]

約数ペア:

[(1, 78901780), (2, 39450890), (4, 19725445), (5, 15780356), (10, 7890178), (20, 3945089), (163, 484060), (326, 242030), (652, 121015), (815, 96812), (1630, 48406), (3260, 24203)]