816540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{439}}^1$

素因数の和:482

約数の個数: 48

約数和(自身を含む): 2365440

約数和(自身を除く): 1548900

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 31, 60, 62, 93, 124, 155, 186, 310, 372, 439, 465, 620, 878, 930, 1317, 1756, 1860, 2195, 2634, 4390, 5268, 6585, 8780, 13170, 13609, 26340, 27218, 40827, 54436, 68045, 81654, 136090, 163308, 204135, 272180, 408270, 816540]

約数ペア:

[(1, 816540), (2, 408270), (3, 272180), (4, 204135), (5, 163308), (6, 136090), (10, 81654), (12, 68045), (15, 54436), (20, 40827), (30, 27218), (31, 26340), (60, 13609), (62, 13170), (93, 8780), (124, 6585), (155, 5268), (186, 4390), (310, 2634), (372, 2195), (439, 1860), (465, 1756), (620, 1317), (878, 930)]