19656006820

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{3623}}^1\times {\mathrm{4447}}^1$

素因数の和:8140

約数の個数: 48

約数和(自身を含む): 41975313408

約数和(自身を除く): 22319306588

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 3623, 4447, 7246, 8894, 14492, 17788, 18115, 22235, 36230, 44470, 72460, 88940, 221003, 271267, 442006, 542534, 884012, 1085068, 1105015, 1356335, 2210030, 2712670, 4420060, 5425340, 16111481, 32222962, 64445924, 80557405, 161114810, 322229620, 982800341, 1965600682, 3931201364, 4914001705, 9828003410, 19656006820]

約数ペア:

[(1, 19656006820), (2, 9828003410), (4, 4914001705), (5, 3931201364), (10, 1965600682), (20, 982800341), (61, 322229620), (122, 161114810), (244, 80557405), (305, 64445924), (610, 32222962), (1220, 16111481), (3623, 5425340), (4447, 4420060), (7246, 2712670), (8894, 2210030), (14492, 1356335), (17788, 1105015), (18115, 1085068), (22235, 884012), (36230, 542534), (44470, 442006), (72460, 271267), (88940, 221003)]