191688920

素因数分解:

$2^3\times 5^1\times {\mathrm{1613}}^1\times {\mathrm{2971}}^1$

素因数の和:4595

約数の個数: 32

約数和(自身を含む): 431712720

約数和(自身を除く): 240023800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1613, 2971, 3226, 5942, 6452, 8065, 11884, 12904, 14855, 16130, 23768, 29710, 32260, 59420, 64520, 118840, 4792223, 9584446, 19168892, 23961115, 38337784, 47922230, 95844460, 191688920]

約数ペア:

[(1, 191688920), (2, 95844460), (4, 47922230), (5, 38337784), (8, 23961115), (10, 19168892), (20, 9584446), (40, 4792223), (1613, 118840), (2971, 64520), (3226, 59420), (5942, 32260), (6452, 29710), (8065, 23768), (11884, 16130), (12904, 14855)]