1388860

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{107}}^1$

素因数の和:186

約数の個数: 48

約数和(自身を含む): 3265920

約数和(自身を除く): 1877060

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 59, 107, 110, 118, 214, 220, 236, 295, 428, 535, 590, 649, 1070, 1177, 1180, 1298, 2140, 2354, 2596, 3245, 4708, 5885, 6313, 6490, 11770, 12626, 12980, 23540, 25252, 31565, 63130, 69443, 126260, 138886, 277772, 347215, 694430, 1388860]

約数ペア:

[(1, 1388860), (2, 694430), (4, 347215), (5, 277772), (10, 138886), (11, 126260), (20, 69443), (22, 63130), (44, 31565), (55, 25252), (59, 23540), (107, 12980), (110, 12626), (118, 11770), (214, 6490), (220, 6313), (236, 5885), (295, 4708), (428, 3245), (535, 2596), (590, 2354), (649, 2140), (1070, 1298), (1177, 1180)]