445097740

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{991}}^1\times {\mathrm{1321}}^1$

素因数の和:2338

約数の個数: 48

約数和(自身を含む): 991436544

約数和(自身を除く): 546338804

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 991, 1321, 1982, 2642, 3964, 4955, 5284, 6605, 9910, 13210, 16847, 19820, 22457, 26420, 33694, 44914, 67388, 84235, 89828, 112285, 168470, 224570, 336940, 449140, 1309111, 2618222, 5236444, 6545555, 13091110, 22254887, 26182220, 44509774, 89019548, 111274435, 222548870, 445097740]

約数ペア:

[(1, 445097740), (2, 222548870), (4, 111274435), (5, 89019548), (10, 44509774), (17, 26182220), (20, 22254887), (34, 13091110), (68, 6545555), (85, 5236444), (170, 2618222), (340, 1309111), (991, 449140), (1321, 336940), (1982, 224570), (2642, 168470), (3964, 112285), (4955, 89828), (5284, 84235), (6605, 67388), (9910, 44914), (13210, 33694), (16847, 26420), (19820, 22457)]