19769420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{3907}}^1$

素因数の和:3950

約数の個数: 48

約数和(自身を含む): 47271168

約数和(自身を除く): 27501748

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 23, 44, 46, 55, 92, 110, 115, 220, 230, 253, 460, 506, 1012, 1265, 2530, 3907, 5060, 7814, 15628, 19535, 39070, 42977, 78140, 85954, 89861, 171908, 179722, 214885, 359444, 429770, 449305, 859540, 898610, 988471, 1797220, 1976942, 3953884, 4942355, 9884710, 19769420]

約数ペア:

[(1, 19769420), (2, 9884710), (4, 4942355), (5, 3953884), (10, 1976942), (11, 1797220), (20, 988471), (22, 898610), (23, 859540), (44, 449305), (46, 429770), (55, 359444), (92, 214885), (110, 179722), (115, 171908), (220, 89861), (230, 85954), (253, 78140), (460, 42977), (506, 39070), (1012, 19535), (1265, 15628), (2530, 7814), (3907, 5060)]