281025420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{360289}}^1$

素因数の和:360314

約数の個数: 48

約数和(自身を含む): 847402080

約数和(自身を除く): 566376660

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, 360289, 720578, 1080867, 1441156, 1801445, 2161734, 3602890, 4323468, 4683757, 5404335, 7205780, 9367514, 10808670, 14051271, 18735028, 21617340, 23418785, 28102542, 46837570, 56205084, 70256355, 93675140, 140512710, 281025420]

約数ペア:

[(1, 281025420), (2, 140512710), (3, 93675140), (4, 70256355), (5, 56205084), (6, 46837570), (10, 28102542), (12, 23418785), (13, 21617340), (15, 18735028), (20, 14051271), (26, 10808670), (30, 9367514), (39, 7205780), (52, 5404335), (60, 4683757), (65, 4323468), (78, 3602890), (130, 2161734), (156, 1801445), (195, 1441156), (260, 1080867), (390, 720578), (780, 360289)]