81393320

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{88471}}^1$

素因数の和:88505

約数の個数: 32

約数和(自身を含む): 191099520

約数和(自身を除く): 109706200

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 88471, 176942, 353884, 442355, 707768, 884710, 1769420, 2034833, 3538840, 4069666, 8139332, 10174165, 16278664, 20348330, 40696660, 81393320]

約数ペア:

[(1, 81393320), (2, 40696660), (4, 20348330), (5, 16278664), (8, 10174165), (10, 8139332), (20, 4069666), (23, 3538840), (40, 2034833), (46, 1769420), (92, 884710), (115, 707768), (184, 442355), (230, 353884), (460, 176942), (920, 88471)]