28824740

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{67}}^1\times {\mathrm{439}}^1$

素因数の和:529

約数の個数: 72

約数和(自身を含む): 71628480

約数和(自身を除く): 42803740

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 67, 70, 98, 134, 140, 196, 245, 268, 335, 439, 469, 490, 670, 878, 938, 980, 1340, 1756, 1876, 2195, 2345, 3073, 3283, 4390, 4690, 6146, 6566, 8780, 9380, 12292, 13132, 15365, 16415, 21511, 29413, 30730, 32830, 43022, 58826, 61460, 65660, 86044, 107555, 117652, 147065, 205891, 215110, 294130, 411782, 430220, 588260, 823564, 1029455, 1441237, 2058910, 2882474, 4117820, 5764948, 7206185, 14412370, 28824740]

約数ペア:

[(1, 28824740), (2, 14412370), (4, 7206185), (5, 5764948), (7, 4117820), (10, 2882474), (14, 2058910), (20, 1441237), (28, 1029455), (35, 823564), (49, 588260), (67, 430220), (70, 411782), (98, 294130), (134, 215110), (140, 205891), (196, 147065), (245, 117652), (268, 107555), (335, 86044), (439, 65660), (469, 61460), (490, 58826), (670, 43022), (878, 32830), (938, 30730), (980, 29413), (1340, 21511), (1756, 16415), (1876, 15365), (2195, 13132), (2345, 12292), (3073, 9380), (3283, 8780), (4390, 6566), (4690, 6146)]