19712220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29867}}^1$

素因数の和:29890

約数の個数: 48

約数和(自身を含む): 60213888

約数和(自身を除く): 40501668

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 132, 165, 220, 330, 660, 29867, 59734, 89601, 119468, 149335, 179202, 298670, 328537, 358404, 448005, 597340, 657074, 896010, 985611, 1314148, 1642685, 1792020, 1971222, 3285370, 3942444, 4928055, 6570740, 9856110, 19712220]

約数ペア:

[(1, 19712220), (2, 9856110), (3, 6570740), (4, 4928055), (5, 3942444), (6, 3285370), (10, 1971222), (11, 1792020), (12, 1642685), (15, 1314148), (20, 985611), (22, 896010), (30, 657074), (33, 597340), (44, 448005), (55, 358404), (60, 328537), (66, 298670), (110, 179202), (132, 149335), (165, 119468), (220, 89601), (330, 59734), (660, 29867)]