20512758070

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{449}}^1\times {\mathrm{4157}}^1$

素因数の和:4777

約数の個数: 64

約数和(自身を含む): 42571267200

約数和(自身を除く): 22058509130

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 157, 314, 449, 785, 898, 1099, 1570, 2198, 2245, 3143, 4157, 4490, 5495, 6286, 8314, 10990, 15715, 20785, 29099, 31430, 41570, 58198, 70493, 140986, 145495, 290990, 352465, 493451, 652649, 704930, 986902, 1305298, 1866493, 2467255, 3263245, 3732986, 4568543, 4934510, 6526490, 9137086, 9332465, 13065451, 18664930, 22842715, 26130902, 45685430, 65327255, 130654510, 293039401, 586078802, 1465197005, 2051275807, 2930394010, 4102551614, 10256379035, 20512758070]

約数ペア:

[(1, 20512758070), (2, 10256379035), (5, 4102551614), (7, 2930394010), (10, 2051275807), (14, 1465197005), (35, 586078802), (70, 293039401), (157, 130654510), (314, 65327255), (449, 45685430), (785, 26130902), (898, 22842715), (1099, 18664930), (1570, 13065451), (2198, 9332465), (2245, 9137086), (3143, 6526490), (4157, 4934510), (4490, 4568543), (5495, 3732986), (6286, 3263245), (8314, 2467255), (10990, 1866493), (15715, 1305298), (20785, 986902), (29099, 704930), (31430, 652649), (41570, 493451), (58198, 352465), (70493, 290990), (140986, 145495)]