18559980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{1063}}^1$

素因数の和:1175

約数の個数: 72

約数和(自身を含む): 56932512

約数和(自身を除く): 38372532

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 97, 180, 194, 291, 388, 485, 582, 873, 970, 1063, 1164, 1455, 1746, 1940, 2126, 2910, 3189, 3492, 4252, 4365, 5315, 5820, 6378, 8730, 9567, 10630, 12756, 15945, 17460, 19134, 21260, 31890, 38268, 47835, 63780, 95670, 103111, 191340, 206222, 309333, 412444, 515555, 618666, 927999, 1031110, 1237332, 1546665, 1855998, 2062220, 3093330, 3711996, 4639995, 6186660, 9279990, 18559980]

約数ペア:

[(1, 18559980), (2, 9279990), (3, 6186660), (4, 4639995), (5, 3711996), (6, 3093330), (9, 2062220), (10, 1855998), (12, 1546665), (15, 1237332), (18, 1031110), (20, 927999), (30, 618666), (36, 515555), (45, 412444), (60, 309333), (90, 206222), (97, 191340), (180, 103111), (194, 95670), (291, 63780), (388, 47835), (485, 38268), (582, 31890), (873, 21260), (970, 19134), (1063, 17460), (1164, 15945), (1455, 12756), (1746, 10630), (1940, 9567), (2126, 8730), (2910, 6378), (3189, 5820), (3492, 5315), (4252, 4365)]