20216901664

素因数分解:

$2^5\times {\mathrm{19}}^1\times {\mathrm{541}}^1\times {\mathrm{61463}}^1$

素因数の和:62033

約数の個数: 48

約数和(自身を含む): 41974994880

約数和(自身を除く): 21758093216

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 76, 152, 304, 541, 608, 1082, 2164, 4328, 8656, 10279, 17312, 20558, 41116, 61463, 82232, 122926, 164464, 245852, 328928, 491704, 983408, 1167797, 1966816, 2335594, 4671188, 9342376, 18684752, 33251483, 37369504, 66502966, 133005932, 266011864, 532023728, 631778177, 1064047456, 1263556354, 2527112708, 5054225416, 10108450832, 20216901664]

約数ペア:

[(1, 20216901664), (2, 10108450832), (4, 5054225416), (8, 2527112708), (16, 1263556354), (19, 1064047456), (32, 631778177), (38, 532023728), (76, 266011864), (152, 133005932), (304, 66502966), (541, 37369504), (608, 33251483), (1082, 18684752), (2164, 9342376), (4328, 4671188), (8656, 2335594), (10279, 1966816), (17312, 1167797), (20558, 983408), (41116, 491704), (61463, 328928), (82232, 245852), (122926, 164464)]