87804818180

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{3254441}}^1$

素因数の和:3254540

約数の個数: 48

約数和(自身を含む): 196828652160

約数和(自身を除く): 109023833980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 71, 76, 95, 142, 190, 284, 355, 380, 710, 1349, 1420, 2698, 5396, 6745, 13490, 26980, 3254441, 6508882, 13017764, 16272205, 32544410, 61834379, 65088820, 123668758, 231065311, 247337516, 309171895, 462130622, 618343790, 924261244, 1155326555, 1236687580, 2310653110, 4390240909, 4621306220, 8780481818, 17560963636, 21951204545, 43902409090, 87804818180]

約数ペア:

[(1, 87804818180), (2, 43902409090), (4, 21951204545), (5, 17560963636), (10, 8780481818), (19, 4621306220), (20, 4390240909), (38, 2310653110), (71, 1236687580), (76, 1155326555), (95, 924261244), (142, 618343790), (190, 462130622), (284, 309171895), (355, 247337516), (380, 231065311), (710, 123668758), (1349, 65088820), (1420, 61834379), (2698, 32544410), (5396, 16272205), (6745, 13017764), (13490, 6508882), (26980, 3254441)]