1028820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1319}}^1$

素因数の和:1344

約数の個数: 48

約数和(自身を含む): 3104640

約数和(自身を除く): 2075820

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 1319, 2638, 3957, 5276, 6595, 7914, 13190, 15828, 17147, 19785, 26380, 34294, 39570, 51441, 68588, 79140, 85735, 102882, 171470, 205764, 257205, 342940, 514410, 1028820]

約数ペア:

[(1, 1028820), (2, 514410), (3, 342940), (4, 257205), (5, 205764), (6, 171470), (10, 102882), (12, 85735), (13, 79140), (15, 68588), (20, 51441), (26, 39570), (30, 34294), (39, 26380), (52, 19785), (60, 17147), (65, 15828), (78, 13190), (130, 7914), (156, 6595), (195, 5276), (260, 3957), (390, 2638), (780, 1319)]