2698780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{521}}^1$

素因数の和:574

約数の個数: 48

約数和(自身を含む): 6664896

約数和(自身を除く): 3966116

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 37, 70, 74, 140, 148, 185, 259, 370, 518, 521, 740, 1036, 1042, 1295, 2084, 2590, 2605, 3647, 5180, 5210, 7294, 10420, 14588, 18235, 19277, 36470, 38554, 72940, 77108, 96385, 134939, 192770, 269878, 385540, 539756, 674695, 1349390, 2698780]

約数ペア:

[(1, 2698780), (2, 1349390), (4, 674695), (5, 539756), (7, 385540), (10, 269878), (14, 192770), (20, 134939), (28, 96385), (35, 77108), (37, 72940), (70, 38554), (74, 36470), (140, 19277), (148, 18235), (185, 14588), (259, 10420), (370, 7294), (518, 5210), (521, 5180), (740, 3647), (1036, 2605), (1042, 2590), (1295, 2084)]