1279590910

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{3727}}^1$

素因数の和:3905

約数の個数: 64

約数和(自身を含む): 2630476800

約数和(自身を除く): 1350885890

約数列:

[1, 2, 5, 10, 13, 19, 26, 38, 65, 95, 130, 139, 190, 247, 278, 494, 695, 1235, 1390, 1807, 2470, 2641, 3614, 3727, 5282, 7454, 9035, 13205, 18070, 18635, 26410, 34333, 37270, 48451, 68666, 70813, 96902, 141626, 171665, 242255, 343330, 354065, 484510, 518053, 708130, 920569, 1036106, 1841138, 2590265, 4602845, 5180530, 6734689, 9205690, 9843007, 13469378, 19686014, 33673445, 49215035, 67346890, 98430070, 127959091, 255918182, 639795455, 1279590910]

約数ペア:

[(1, 1279590910), (2, 639795455), (5, 255918182), (10, 127959091), (13, 98430070), (19, 67346890), (26, 49215035), (38, 33673445), (65, 19686014), (95, 13469378), (130, 9843007), (139, 9205690), (190, 6734689), (247, 5180530), (278, 4602845), (494, 2590265), (695, 1841138), (1235, 1036106), (1390, 920569), (1807, 708130), (2470, 518053), (2641, 484510), (3614, 354065), (3727, 343330), (5282, 242255), (7454, 171665), (9035, 141626), (13205, 96902), (18070, 70813), (18635, 68666), (26410, 48451), (34333, 37270)]