16403420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{74561}}^1$

素因数の和:74581

約数の個数: 24

約数和(自身を含む): 37579248

約数和(自身を除く): 21175828

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 74561, 149122, 298244, 372805, 745610, 820171, 1491220, 1640342, 3280684, 4100855, 8201710, 16403420]

約数ペア:

[(1, 16403420), (2, 8201710), (4, 4100855), (5, 3280684), (10, 1640342), (11, 1491220), (20, 820171), (22, 745610), (44, 372805), (55, 298244), (110, 149122), (220, 74561)]