20115668900

素因数分解:

$2^2\times 5^2\times {\mathrm{23}}^1\times {\mathrm{137}}^1\times {\mathrm{63839}}^1$

素因数の和:64013

約数の個数: 72

約数和(自身を含む): 45882063360

約数和(自身を除く): 25766394460

約数列:

[1, 2, 4, 5, 10, 20, 23, 25, 46, 50, 92, 100, 115, 137, 230, 274, 460, 548, 575, 685, 1150, 1370, 2300, 2740, 3151, 3425, 6302, 6850, 12604, 13700, 15755, 31510, 63020, 63839, 78775, 127678, 157550, 255356, 315100, 319195, 638390, 1276780, 1468297, 1595975, 2936594, 3191950, 5873188, 6383900, 7341485, 8745943, 14682970, 17491886, 29365940, 34983772, 36707425, 43729715, 73414850, 87459430, 146829700, 174918860, 201156689, 218648575, 402313378, 437297150, 804626756, 874594300, 1005783445, 2011566890, 4023133780, 5028917225, 10057834450, 20115668900]

約数ペア:

[(1, 20115668900), (2, 10057834450), (4, 5028917225), (5, 4023133780), (10, 2011566890), (20, 1005783445), (23, 874594300), (25, 804626756), (46, 437297150), (50, 402313378), (92, 218648575), (100, 201156689), (115, 174918860), (137, 146829700), (230, 87459430), (274, 73414850), (460, 43729715), (548, 36707425), (575, 34983772), (685, 29365940), (1150, 17491886), (1370, 14682970), (2300, 8745943), (2740, 7341485), (3151, 6383900), (3425, 5873188), (6302, 3191950), (6850, 2936594), (12604, 1595975), (13700, 1468297), (15755, 1276780), (31510, 638390), (63020, 319195), (63839, 315100), (78775, 255356), (127678, 157550)]