2245180

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{79}}^1$

素因数の和:131

約数の個数: 72

約数和(自身を含む): 5745600

約数和(自身を除く): 3500420

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 49, 58, 70, 79, 98, 116, 140, 145, 158, 196, 203, 245, 290, 316, 395, 406, 490, 553, 580, 790, 812, 980, 1015, 1106, 1421, 1580, 2030, 2212, 2291, 2765, 2842, 3871, 4060, 4582, 5530, 5684, 7105, 7742, 9164, 11060, 11455, 14210, 15484, 16037, 19355, 22910, 28420, 32074, 38710, 45820, 64148, 77420, 80185, 112259, 160370, 224518, 320740, 449036, 561295, 1122590, 2245180]

約数ペア:

[(1, 2245180), (2, 1122590), (4, 561295), (5, 449036), (7, 320740), (10, 224518), (14, 160370), (20, 112259), (28, 80185), (29, 77420), (35, 64148), (49, 45820), (58, 38710), (70, 32074), (79, 28420), (98, 22910), (116, 19355), (140, 16037), (145, 15484), (158, 14210), (196, 11455), (203, 11060), (245, 9164), (290, 7742), (316, 7105), (395, 5684), (406, 5530), (490, 4582), (553, 4060), (580, 3871), (790, 2842), (812, 2765), (980, 2291), (1015, 2212), (1106, 2030), (1421, 1580)]