285577880

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{145703}}^1$

素因数の和:145728

約数の個数: 48

約数和(自身を含む): 747461520

約数和(自身を除く): 461883640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 145703, 291406, 582812, 728515, 1019921, 1165624, 1457030, 2039842, 2914060, 4079684, 5099605, 5828120, 7139447, 8159368, 10199210, 14278894, 20398420, 28557788, 35697235, 40796840, 57115576, 71394470, 142788940, 285577880]

約数ペア:

[(1, 285577880), (2, 142788940), (4, 71394470), (5, 57115576), (7, 40796840), (8, 35697235), (10, 28557788), (14, 20398420), (20, 14278894), (28, 10199210), (35, 8159368), (40, 7139447), (49, 5828120), (56, 5099605), (70, 4079684), (98, 2914060), (140, 2039842), (196, 1457030), (245, 1165624), (280, 1019921), (392, 728515), (490, 582812), (980, 291406), (1960, 145703)]