21615695960

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{827}}^1\times {\mathrm{12329}}^1$

素因数の和:13220

約数の個数: 64

約数和(自身を含む): 49616906400

約数和(自身を除く): 28001210440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 424, 530, 827, 1060, 1654, 2120, 3308, 4135, 6616, 8270, 12329, 16540, 24658, 33080, 43831, 49316, 61645, 87662, 98632, 123290, 175324, 219155, 246580, 350648, 438310, 493160, 653437, 876620, 1306874, 1753240, 2613748, 3267185, 5227496, 6534370, 10196083, 13068740, 20392166, 26137480, 40784332, 50980415, 81568664, 101960830, 203921660, 407843320, 540392399, 1080784798, 2161569596, 2701961995, 4323139192, 5403923990, 10807847980, 21615695960]

約数ペア:

[(1, 21615695960), (2, 10807847980), (4, 5403923990), (5, 4323139192), (8, 2701961995), (10, 2161569596), (20, 1080784798), (40, 540392399), (53, 407843320), (106, 203921660), (212, 101960830), (265, 81568664), (424, 50980415), (530, 40784332), (827, 26137480), (1060, 20392166), (1654, 13068740), (2120, 10196083), (3308, 6534370), (4135, 5227496), (6616, 3267185), (8270, 2613748), (12329, 1753240), (16540, 1306874), (24658, 876620), (33080, 653437), (43831, 493160), (49316, 438310), (61645, 350648), (87662, 246580), (98632, 219155), (123290, 175324)]