2705780

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{251}}^1$

素因数の和:285

約数の個数: 72

約数和(自身を含む): 7239456

約数和(自身を除く): 4533676

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 49, 55, 70, 77, 98, 110, 140, 154, 196, 220, 245, 251, 308, 385, 490, 502, 539, 770, 980, 1004, 1078, 1255, 1540, 1757, 2156, 2510, 2695, 2761, 3514, 5020, 5390, 5522, 7028, 8785, 10780, 11044, 12299, 13805, 17570, 19327, 24598, 27610, 35140, 38654, 49196, 55220, 61495, 77308, 96635, 122990, 135289, 193270, 245980, 270578, 386540, 541156, 676445, 1352890, 2705780]

約数ペア:

[(1, 2705780), (2, 1352890), (4, 676445), (5, 541156), (7, 386540), (10, 270578), (11, 245980), (14, 193270), (20, 135289), (22, 122990), (28, 96635), (35, 77308), (44, 61495), (49, 55220), (55, 49196), (70, 38654), (77, 35140), (98, 27610), (110, 24598), (140, 19327), (154, 17570), (196, 13805), (220, 12299), (245, 11044), (251, 10780), (308, 8785), (385, 7028), (490, 5522), (502, 5390), (539, 5020), (770, 3514), (980, 2761), (1004, 2695), (1078, 2510), (1255, 2156), (1540, 1757)]