142780

素因数分解:

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

素因数の和:90

約数の個数: 36

約数和(自身を含む): 335160

約数和(自身を除く): 192380

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 59, 110, 118, 121, 220, 236, 242, 295, 484, 590, 605, 649, 1180, 1210, 1298, 2420, 2596, 3245, 6490, 7139, 12980, 14278, 28556, 35695, 71390, 142780]

約数ペア:

[(1, 142780), (2, 71390), (4, 35695), (5, 28556), (10, 14278), (11, 12980), (20, 7139), (22, 6490), (44, 3245), (55, 2596), (59, 2420), (110, 1298), (118, 1210), (121, 1180), (220, 649), (236, 605), (242, 590), (295, 484)]