31374880

素因数分解:

$2^5\times 5^1\times {\mathrm{157}}^1\times {\mathrm{1249}}^1$

素因数の和:1421

約数の個数: 48

約数和(自身を含む): 74655000

約数和(自身を除く): 43280120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 157, 160, 314, 628, 785, 1249, 1256, 1570, 2498, 2512, 3140, 4996, 5024, 6245, 6280, 9992, 12490, 12560, 19984, 24980, 25120, 39968, 49960, 99920, 196093, 199840, 392186, 784372, 980465, 1568744, 1960930, 3137488, 3921860, 6274976, 7843720, 15687440, 31374880]

約数ペア:

[(1, 31374880), (2, 15687440), (4, 7843720), (5, 6274976), (8, 3921860), (10, 3137488), (16, 1960930), (20, 1568744), (32, 980465), (40, 784372), (80, 392186), (157, 199840), (160, 196093), (314, 99920), (628, 49960), (785, 39968), (1249, 25120), (1256, 24980), (1570, 19984), (2498, 12560), (2512, 12490), (3140, 9992), (4996, 6280), (5024, 6245)]