389600380

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{40499}}^1$

素因数の和:40558

約数の個数: 48

約数和(自身を含む): 904932000

約数和(自身を除く): 515331620

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 37, 52, 65, 74, 130, 148, 185, 260, 370, 481, 740, 962, 1924, 2405, 4810, 9620, 40499, 80998, 161996, 202495, 404990, 526487, 809980, 1052974, 1498463, 2105948, 2632435, 2996926, 5264870, 5993852, 7492315, 10529740, 14984630, 19480019, 29969260, 38960038, 77920076, 97400095, 194800190, 389600380]

約数ペア:

[(1, 389600380), (2, 194800190), (4, 97400095), (5, 77920076), (10, 38960038), (13, 29969260), (20, 19480019), (26, 14984630), (37, 10529740), (52, 7492315), (65, 5993852), (74, 5264870), (130, 2996926), (148, 2632435), (185, 2105948), (260, 1498463), (370, 1052974), (481, 809980), (740, 526487), (962, 404990), (1924, 202495), (2405, 161996), (4810, 80998), (9620, 40499)]