20375820

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{389}}^1$

素因数の和:504

約数の個数: 96

約数和(自身を含む): 64209600

約数和(自身を除く): 43833780

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 97, 108, 135, 180, 194, 270, 291, 388, 389, 485, 540, 582, 778, 873, 970, 1164, 1167, 1455, 1556, 1746, 1940, 1945, 2334, 2619, 2910, 3492, 3501, 3890, 4365, 4668, 5238, 5820, 5835, 7002, 7780, 8730, 10476, 10503, 11670, 13095, 14004, 17460, 17505, 21006, 23340, 26190, 35010, 37733, 42012, 52380, 52515, 70020, 75466, 105030, 113199, 150932, 188665, 210060, 226398, 339597, 377330, 452796, 565995, 679194, 754660, 1018791, 1131990, 1358388, 1697985, 2037582, 2263980, 3395970, 4075164, 5093955, 6791940, 10187910, 20375820]

約数ペア:

[(1, 20375820), (2, 10187910), (3, 6791940), (4, 5093955), (5, 4075164), (6, 3395970), (9, 2263980), (10, 2037582), (12, 1697985), (15, 1358388), (18, 1131990), (20, 1018791), (27, 754660), (30, 679194), (36, 565995), (45, 452796), (54, 377330), (60, 339597), (90, 226398), (97, 210060), (108, 188665), (135, 150932), (180, 113199), (194, 105030), (270, 75466), (291, 70020), (388, 52515), (389, 52380), (485, 42012), (540, 37733), (582, 35010), (778, 26190), (873, 23340), (970, 21006), (1164, 17505), (1167, 17460), (1455, 14004), (1556, 13095), (1746, 11670), (1940, 10503), (1945, 10476), (2334, 8730), (2619, 7780), (2910, 7002), (3492, 5835), (3501, 5820), (3890, 5238), (4365, 4668)]