8424020

素因数分解:

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

素因数の和:149

約数の個数: 54

約数和(自身を含む): 19780026

約数和(自身を除く): 11356006

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, 3481, 6490, 6962, 7139, 12980, 13924, 14278, 17405, 28556, 34810, 35695, 38291, 69620, 71390, 76582, 142780, 153164, 191455, 382910, 421201, 765820, 842402, 1684804, 2106005, 4212010, 8424020]

約数ペア:

[(1, 8424020), (2, 4212010), (4, 2106005), (5, 1684804), (10, 842402), (11, 765820), (20, 421201), (22, 382910), (44, 191455), (55, 153164), (59, 142780), (110, 76582), (118, 71390), (121, 69620), (220, 38291), (236, 35695), (242, 34810), (295, 28556), (484, 17405), (590, 14278), (605, 13924), (649, 12980), (1180, 7139), (1210, 6962), (1298, 6490), (2420, 3481), (2596, 3245)]