221346970

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{2131}}^1$

素因数の和:2215

約数の個数: 64

約数和(自身を含む): 464196096

約数和(自身を除く): 242849126

約数列:

[1, 2, 5, 10, 13, 17, 26, 34, 47, 65, 85, 94, 130, 170, 221, 235, 442, 470, 611, 799, 1105, 1222, 1598, 2131, 2210, 3055, 3995, 4262, 6110, 7990, 10387, 10655, 20774, 21310, 27703, 36227, 51935, 55406, 72454, 100157, 103870, 138515, 181135, 200314, 277030, 362270, 470951, 500785, 941902, 1001570, 1302041, 1702669, 2354755, 2604082, 3405338, 4709510, 6510205, 8513345, 13020410, 17026690, 22134697, 44269394, 110673485, 221346970]

約数ペア:

[(1, 221346970), (2, 110673485), (5, 44269394), (10, 22134697), (13, 17026690), (17, 13020410), (26, 8513345), (34, 6510205), (47, 4709510), (65, 3405338), (85, 2604082), (94, 2354755), (130, 1702669), (170, 1302041), (221, 1001570), (235, 941902), (442, 500785), (470, 470951), (611, 362270), (799, 277030), (1105, 200314), (1222, 181135), (1598, 138515), (2131, 103870), (2210, 100157), (3055, 72454), (3995, 55406), (4262, 51935), (6110, 36227), (7990, 27703), (10387, 21310), (10655, 20774)]