18646890

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{107}}^1\times {\mathrm{157}}^1$

素因数の和:311

約数の個数: 64

約数和(自身を含む): 46687104

約数和(自身を除く): 28040214

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 37, 74, 107, 111, 157, 185, 214, 222, 314, 321, 370, 471, 535, 555, 642, 785, 942, 1070, 1110, 1570, 1605, 2355, 3210, 3959, 4710, 5809, 7918, 11618, 11877, 16799, 17427, 19795, 23754, 29045, 33598, 34854, 39590, 50397, 58090, 59385, 83995, 87135, 100794, 118770, 167990, 174270, 251985, 503970, 621563, 1243126, 1864689, 3107815, 3729378, 6215630, 9323445, 18646890]

約数ペア:

[(1, 18646890), (2, 9323445), (3, 6215630), (5, 3729378), (6, 3107815), (10, 1864689), (15, 1243126), (30, 621563), (37, 503970), (74, 251985), (107, 174270), (111, 167990), (157, 118770), (185, 100794), (214, 87135), (222, 83995), (314, 59385), (321, 58090), (370, 50397), (471, 39590), (535, 34854), (555, 33598), (642, 29045), (785, 23754), (942, 19795), (1070, 17427), (1110, 16799), (1570, 11877), (1605, 11618), (2355, 7918), (3210, 5809), (3959, 4710)]