20728770

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{31}}^2\times {\mathrm{719}}^1$

素因数の和:791

約数の個数: 48

約数和(自身を含む): 51477120

約数和(自身を除く): 30748350

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 31, 62, 93, 155, 186, 310, 465, 719, 930, 961, 1438, 1922, 2157, 2883, 3595, 4314, 4805, 5766, 7190, 9610, 10785, 14415, 21570, 22289, 28830, 44578, 66867, 111445, 133734, 222890, 334335, 668670, 690959, 1381918, 2072877, 3454795, 4145754, 6909590, 10364385, 20728770]

約数ペア:

[(1, 20728770), (2, 10364385), (3, 6909590), (5, 4145754), (6, 3454795), (10, 2072877), (15, 1381918), (30, 690959), (31, 668670), (62, 334335), (93, 222890), (155, 133734), (186, 111445), (310, 66867), (465, 44578), (719, 28830), (930, 22289), (961, 21570), (1438, 14415), (1922, 10785), (2157, 9610), (2883, 7190), (3595, 5766), (4314, 4805)]