20163690064

素因数分解:

$2^4\times 7^1\times {\mathrm{461}}^1\times {\mathrm{390527}}^1$

素因数の和:391003

約数の個数: 40

約数和(自身を含む): 44745136128

約数和(自身を除く): 24581446064

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 461, 922, 1844, 3227, 3688, 6454, 7376, 12908, 25816, 51632, 390527, 781054, 1562108, 2733689, 3124216, 5467378, 6248432, 10934756, 21869512, 43739024, 180032947, 360065894, 720131788, 1260230629, 1440263576, 2520461258, 2880527152, 5040922516, 10081845032, 20163690064]

約数ペア:

[(1, 20163690064), (2, 10081845032), (4, 5040922516), (7, 2880527152), (8, 2520461258), (14, 1440263576), (16, 1260230629), (28, 720131788), (56, 360065894), (112, 180032947), (461, 43739024), (922, 21869512), (1844, 10934756), (3227, 6248432), (3688, 5467378), (6454, 3124216), (7376, 2733689), (12908, 1562108), (25816, 781054), (51632, 390527)]