19216780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{773}}^1$

素因数の和:906

約数の個数: 48

約数和(自身を含む): 44470944

約数和(自身を除く): 25254164

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 113, 220, 226, 452, 565, 773, 1130, 1243, 1546, 2260, 2486, 3092, 3865, 4972, 6215, 7730, 8503, 12430, 15460, 17006, 24860, 34012, 42515, 85030, 87349, 170060, 174698, 349396, 436745, 873490, 960839, 1746980, 1921678, 3843356, 4804195, 9608390, 19216780]

約数ペア:

[(1, 19216780), (2, 9608390), (4, 4804195), (5, 3843356), (10, 1921678), (11, 1746980), (20, 960839), (22, 873490), (44, 436745), (55, 349396), (110, 174698), (113, 170060), (220, 87349), (226, 85030), (452, 42515), (565, 34012), (773, 24860), (1130, 17006), (1243, 15460), (1546, 12430), (2260, 8503), (2486, 7730), (3092, 6215), (3865, 4972)]