979983460

素因数分解:

$2^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{199}}^1\times {\mathrm{2179}}^1$

素因数の和:2500

約数の個数: 48

約数和(自身を含む): 2087568000

約数和(自身を除く): 1107584540

約数列:

[1, 2, 4, 5, 10, 20, 113, 199, 226, 398, 452, 565, 796, 995, 1130, 1990, 2179, 2260, 3980, 4358, 8716, 10895, 21790, 22487, 43580, 44974, 89948, 112435, 224870, 246227, 433621, 449740, 492454, 867242, 984908, 1231135, 1734484, 2168105, 2462270, 4336210, 4924540, 8672420, 48999173, 97998346, 195996692, 244995865, 489991730, 979983460]

約数ペア:

[(1, 979983460), (2, 489991730), (4, 244995865), (5, 195996692), (10, 97998346), (20, 48999173), (113, 8672420), (199, 4924540), (226, 4336210), (398, 2462270), (452, 2168105), (565, 1734484), (796, 1231135), (995, 984908), (1130, 867242), (1990, 492454), (2179, 449740), (2260, 433621), (3980, 246227), (4358, 224870), (8716, 112435), (10895, 89948), (21790, 44974), (22487, 43580)]