210009580

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{15649}}^1$

素因数の和:15730

約数の個数: 48

約数和(自身を含む): 489031200

約数和(自身を除く): 279021620

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 61, 110, 122, 220, 244, 305, 610, 671, 1220, 1342, 2684, 3355, 6710, 13420, 15649, 31298, 62596, 78245, 156490, 172139, 312980, 344278, 688556, 860695, 954589, 1721390, 1909178, 3442780, 3818356, 4772945, 9545890, 10500479, 19091780, 21000958, 42001916, 52502395, 105004790, 210009580]

約数ペア:

[(1, 210009580), (2, 105004790), (4, 52502395), (5, 42001916), (10, 21000958), (11, 19091780), (20, 10500479), (22, 9545890), (44, 4772945), (55, 3818356), (61, 3442780), (110, 1909178), (122, 1721390), (220, 954589), (244, 860695), (305, 688556), (610, 344278), (671, 312980), (1220, 172139), (1342, 156490), (2684, 78245), (3355, 62596), (6710, 31298), (13420, 15649)]