907172860

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{217027}}^1$

素因数の和:217066

約数の個数: 48

約数和(自身を含む): 2187642240

約数和(自身を除く): 1280469380

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 44, 55, 76, 95, 110, 190, 209, 220, 380, 418, 836, 1045, 2090, 4180, 217027, 434054, 868108, 1085135, 2170270, 2387297, 4123513, 4340540, 4774594, 8247026, 9549188, 11936485, 16494052, 20617565, 23872970, 41235130, 45358643, 47745940, 82470260, 90717286, 181434572, 226793215, 453586430, 907172860]

約数ペア:

[(1, 907172860), (2, 453586430), (4, 226793215), (5, 181434572), (10, 90717286), (11, 82470260), (19, 47745940), (20, 45358643), (22, 41235130), (38, 23872970), (44, 20617565), (55, 16494052), (76, 11936485), (95, 9549188), (110, 8247026), (190, 4774594), (209, 4340540), (220, 4123513), (380, 2387297), (418, 2170270), (836, 1085135), (1045, 868108), (2090, 434054), (4180, 217027)]