142788940

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{145703}}^1$

素因数の和:145726

約数の個数: 36

約数和(自身を含む): 348815376

約数和(自身を除く): 206026436

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 145703, 291406, 582812, 728515, 1019921, 1457030, 2039842, 2914060, 4079684, 5099605, 7139447, 10199210, 14278894, 20398420, 28557788, 35697235, 71394470, 142788940]

約数ペア:

[(1, 142788940), (2, 71394470), (4, 35697235), (5, 28557788), (7, 20398420), (10, 14278894), (14, 10199210), (20, 7139447), (28, 5099605), (35, 4079684), (49, 2914060), (70, 2039842), (98, 1457030), (140, 1019921), (196, 728515), (245, 582812), (490, 291406), (980, 145703)]