201994463980

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{2131}}^1\times {\mathrm{43481}}^1$

素因数の和:45730

約数の個数: 48

約数和(自身を含む): 428290742880

約数和(自身を除く): 226296278900

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2131, 2180, 4262, 8524, 10655, 21310, 42620, 43481, 86962, 173924, 217405, 232279, 434810, 464558, 869620, 929116, 1161395, 2322790, 4645580, 4739429, 9478858, 18957716, 23697145, 47394290, 92658011, 94788580, 185316022, 370632044, 463290055, 926580110, 1853160220, 10099723199, 20199446398, 40398892796, 50498615995, 100997231990, 201994463980]

約数ペア:

[(1, 201994463980), (2, 100997231990), (4, 50498615995), (5, 40398892796), (10, 20199446398), (20, 10099723199), (109, 1853160220), (218, 926580110), (436, 463290055), (545, 370632044), (1090, 185316022), (2131, 94788580), (2180, 92658011), (4262, 47394290), (8524, 23697145), (10655, 18957716), (21310, 9478858), (42620, 4739429), (43481, 4645580), (86962, 2322790), (173924, 1161395), (217405, 929116), (232279, 869620), (434810, 464558)]