65918020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{2999}}^1$

素因数の和:3172

約数の個数: 48

約数和(自身を含む): 159264000

約数和(自身を除く): 93345980

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 157, 314, 628, 785, 1099, 1570, 2198, 2999, 3140, 4396, 5495, 5998, 10990, 11996, 14995, 20993, 21980, 29990, 41986, 59980, 83972, 104965, 209930, 419860, 470843, 941686, 1883372, 2354215, 3295901, 4708430, 6591802, 9416860, 13183604, 16479505, 32959010, 65918020]

約数ペア:

[(1, 65918020), (2, 32959010), (4, 16479505), (5, 13183604), (7, 9416860), (10, 6591802), (14, 4708430), (20, 3295901), (28, 2354215), (35, 1883372), (70, 941686), (140, 470843), (157, 419860), (314, 209930), (628, 104965), (785, 83972), (1099, 59980), (1570, 41986), (2198, 29990), (2999, 21980), (3140, 20993), (4396, 14995), (5495, 11996), (5998, 10990)]