720285260

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{179}}^1\times {\mathrm{4679}}^1$

素因数の和:4910

約数の個数: 48

約数和(自身を含む): 1556755200

約数和(自身を除く): 836469940

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 179, 215, 358, 430, 716, 860, 895, 1790, 3580, 4679, 7697, 9358, 15394, 18716, 23395, 30788, 38485, 46790, 76970, 93580, 153940, 201197, 402394, 804788, 837541, 1005985, 1675082, 2011970, 3350164, 4023940, 4187705, 8375410, 16750820, 36014263, 72028526, 144057052, 180071315, 360142630, 720285260]

約数ペア:

[(1, 720285260), (2, 360142630), (4, 180071315), (5, 144057052), (10, 72028526), (20, 36014263), (43, 16750820), (86, 8375410), (172, 4187705), (179, 4023940), (215, 3350164), (358, 2011970), (430, 1675082), (716, 1005985), (860, 837541), (895, 804788), (1790, 402394), (3580, 201197), (4679, 153940), (7697, 93580), (9358, 76970), (15394, 46790), (18716, 38485), (23395, 30788)]