131806280

素因数分解:

$2^3\times 5^1\times {\mathrm{1489}}^1\times {\mathrm{2213}}^1$

素因数の和:3713

約数の個数: 32

約数和(自身を含む): 296897400

約数和(自身を除く): 165091120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1489, 2213, 2978, 4426, 5956, 7445, 8852, 11065, 11912, 14890, 17704, 22130, 29780, 44260, 59560, 88520, 3295157, 6590314, 13180628, 16475785, 26361256, 32951570, 65903140, 131806280]

約数ペア:

[(1, 131806280), (2, 65903140), (4, 32951570), (5, 26361256), (8, 16475785), (10, 13180628), (20, 6590314), (40, 3295157), (1489, 88520), (2213, 59560), (2978, 44260), (4426, 29780), (5956, 22130), (7445, 17704), (8852, 14890), (11065, 11912)]