2643640

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1$

素因数の和:136

約数の個数: 64

約数和(自身を含む): 6415200

約数和(自身を除く): 3771560

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 43, 53, 58, 86, 106, 116, 145, 172, 212, 215, 232, 265, 290, 344, 424, 430, 530, 580, 860, 1060, 1160, 1247, 1537, 1720, 2120, 2279, 2494, 3074, 4558, 4988, 6148, 6235, 7685, 9116, 9976, 11395, 12296, 12470, 15370, 18232, 22790, 24940, 30740, 45580, 49880, 61480, 66091, 91160, 132182, 264364, 330455, 528728, 660910, 1321820, 2643640]

約数ペア:

[(1, 2643640), (2, 1321820), (4, 660910), (5, 528728), (8, 330455), (10, 264364), (20, 132182), (29, 91160), (40, 66091), (43, 61480), (53, 49880), (58, 45580), (86, 30740), (106, 24940), (116, 22790), (145, 18232), (172, 15370), (212, 12470), (215, 12296), (232, 11395), (265, 9976), (290, 9116), (344, 7685), (424, 6235), (430, 6148), (530, 4988), (580, 4558), (860, 3074), (1060, 2494), (1160, 2279), (1247, 2120), (1537, 1720)]