138208540

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{5437}}^1$

素因数の和:5518

約数の個数: 48

約数和(自身を含む): 306964224

約数和(自身を除く): 168755684

約数列:

[1, 2, 4, 5, 10, 20, 31, 41, 62, 82, 124, 155, 164, 205, 310, 410, 620, 820, 1271, 2542, 5084, 5437, 6355, 10874, 12710, 21748, 25420, 27185, 54370, 108740, 168547, 222917, 337094, 445834, 674188, 842735, 891668, 1114585, 1685470, 2229170, 3370940, 4458340, 6910427, 13820854, 27641708, 34552135, 69104270, 138208540]

約数ペア:

[(1, 138208540), (2, 69104270), (4, 34552135), (5, 27641708), (10, 13820854), (20, 6910427), (31, 4458340), (41, 3370940), (62, 2229170), (82, 1685470), (124, 1114585), (155, 891668), (164, 842735), (205, 674188), (310, 445834), (410, 337094), (620, 222917), (820, 168547), (1271, 108740), (2542, 54370), (5084, 27185), (5437, 25420), (6355, 21748), (10874, 12710)]