8720140

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{3049}}^1$

素因数の和:3082

約数の個数: 48

約数和(自身を含む): 21520800

約数和(自身を除く): 12800660

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 110, 130, 143, 220, 260, 286, 572, 715, 1430, 2860, 3049, 6098, 12196, 15245, 30490, 33539, 39637, 60980, 67078, 79274, 134156, 158548, 167695, 198185, 335390, 396370, 436007, 670780, 792740, 872014, 1744028, 2180035, 4360070, 8720140]

約数ペア:

[(1, 8720140), (2, 4360070), (4, 2180035), (5, 1744028), (10, 872014), (11, 792740), (13, 670780), (20, 436007), (22, 396370), (26, 335390), (44, 198185), (52, 167695), (55, 158548), (65, 134156), (110, 79274), (130, 67078), (143, 60980), (220, 39637), (260, 33539), (286, 30490), (572, 15245), (715, 12196), (1430, 6098), (2860, 3049)]