1338962660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{258487}}^1$

素因数の和:258540

約数の個数: 48

約数和(自身を含む): 3300374784

約数和(自身を除く): 1961412124

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 37, 70, 74, 140, 148, 185, 259, 370, 518, 740, 1036, 1295, 2590, 5180, 258487, 516974, 1033948, 1292435, 1809409, 2584870, 3618818, 5169740, 7237636, 9047045, 9564019, 18094090, 19128038, 36188180, 38256076, 47820095, 66948133, 95640190, 133896266, 191280380, 267792532, 334740665, 669481330, 1338962660]

約数ペア:

[(1, 1338962660), (2, 669481330), (4, 334740665), (5, 267792532), (7, 191280380), (10, 133896266), (14, 95640190), (20, 66948133), (28, 47820095), (35, 38256076), (37, 36188180), (70, 19128038), (74, 18094090), (140, 9564019), (148, 9047045), (185, 7237636), (259, 5169740), (370, 3618818), (518, 2584870), (740, 1809409), (1036, 1292435), (1295, 1033948), (2590, 516974), (5180, 258487)]