80494670980

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{109}}^1\times {\mathrm{358487}}^1$

素因数の和:358708

約数の個数: 48

約数和(自身を含む): 172246314240

約数和(自身を除く): 91751643260

約数列:

[1, 2, 4, 5, 10, 20, 103, 109, 206, 218, 412, 436, 515, 545, 1030, 1090, 2060, 2180, 11227, 22454, 44908, 56135, 112270, 224540, 358487, 716974, 1433948, 1792435, 3584870, 7169740, 36924161, 39075083, 73848322, 78150166, 147696644, 156300332, 184620805, 195375415, 369241610, 390750830, 738483220, 781501660, 4024733549, 8049467098, 16098934196, 20123667745, 40247335490, 80494670980]

約数ペア:

[(1, 80494670980), (2, 40247335490), (4, 20123667745), (5, 16098934196), (10, 8049467098), (20, 4024733549), (103, 781501660), (109, 738483220), (206, 390750830), (218, 369241610), (412, 195375415), (436, 184620805), (515, 156300332), (545, 147696644), (1030, 78150166), (1090, 73848322), (2060, 39075083), (2180, 36924161), (11227, 7169740), (22454, 3584870), (44908, 1792435), (56135, 1433948), (112270, 716974), (224540, 358487)]