19791420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{191}}^1$

素因数の和:371

約数の個数: 96

約数和(自身を含む): 61157376

約数和(自身を除く): 41365956

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 132, 157, 165, 191, 220, 314, 330, 382, 471, 573, 628, 660, 764, 785, 942, 955, 1146, 1570, 1727, 1884, 1910, 2101, 2292, 2355, 2865, 3140, 3454, 3820, 4202, 4710, 5181, 5730, 6303, 6908, 8404, 8635, 9420, 10362, 10505, 11460, 12606, 17270, 20724, 21010, 25212, 25905, 29987, 31515, 34540, 42020, 51810, 59974, 63030, 89961, 103620, 119948, 126060, 149935, 179922, 299870, 329857, 359844, 449805, 599740, 659714, 899610, 989571, 1319428, 1649285, 1799220, 1979142, 3298570, 3958284, 4947855, 6597140, 9895710, 19791420]

約数ペア:

[(1, 19791420), (2, 9895710), (3, 6597140), (4, 4947855), (5, 3958284), (6, 3298570), (10, 1979142), (11, 1799220), (12, 1649285), (15, 1319428), (20, 989571), (22, 899610), (30, 659714), (33, 599740), (44, 449805), (55, 359844), (60, 329857), (66, 299870), (110, 179922), (132, 149935), (157, 126060), (165, 119948), (191, 103620), (220, 89961), (314, 63030), (330, 59974), (382, 51810), (471, 42020), (573, 34540), (628, 31515), (660, 29987), (764, 25905), (785, 25212), (942, 21010), (955, 20724), (1146, 17270), (1570, 12606), (1727, 11460), (1884, 10505), (1910, 10362), (2101, 9420), (2292, 8635), (2355, 8404), (2865, 6908), (3140, 6303), (3454, 5730), (3820, 5181), (4202, 4710)]