220110250

素因数分解:

$2^1\times 5^3\times {\mathrm{19}}^1\times {\mathrm{149}}^1\times {\mathrm{311}}^1$

素因数の和:496

約数の個数: 64

約数和(自身を含む): 438048000

約数和(自身を除く): 217937750

約数列:

[1, 2, 5, 10, 19, 25, 38, 50, 95, 125, 149, 190, 250, 298, 311, 475, 622, 745, 950, 1490, 1555, 2375, 2831, 3110, 3725, 4750, 5662, 5909, 7450, 7775, 11818, 14155, 15550, 18625, 28310, 29545, 37250, 38875, 46339, 59090, 70775, 77750, 92678, 141550, 147725, 231695, 295450, 353875, 463390, 707750, 738625, 880441, 1158475, 1477250, 1760882, 2316950, 4402205, 5792375, 8804410, 11584750, 22011025, 44022050, 110055125, 220110250]

約数ペア:

[(1, 220110250), (2, 110055125), (5, 44022050), (10, 22011025), (19, 11584750), (25, 8804410), (38, 5792375), (50, 4402205), (95, 2316950), (125, 1760882), (149, 1477250), (190, 1158475), (250, 880441), (298, 738625), (311, 707750), (475, 463390), (622, 353875), (745, 295450), (950, 231695), (1490, 147725), (1555, 141550), (2375, 92678), (2831, 77750), (3110, 70775), (3725, 59090), (4750, 46339), (5662, 38875), (5909, 37250), (7450, 29545), (7775, 28310), (11818, 18625), (14155, 15550)]