18969020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{137}}^1$

素因数の和:219

約数の個数: 96

約数和(自身を含む): 48964608

約数和(自身を除く): 29995588

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 43, 46, 70, 86, 92, 115, 137, 140, 161, 172, 215, 230, 274, 301, 322, 430, 460, 548, 602, 644, 685, 805, 860, 959, 989, 1204, 1370, 1505, 1610, 1918, 1978, 2740, 3010, 3151, 3220, 3836, 3956, 4795, 4945, 5891, 6020, 6302, 6923, 9590, 9890, 11782, 12604, 13846, 15755, 19180, 19780, 22057, 23564, 27692, 29455, 31510, 34615, 41237, 44114, 58910, 63020, 69230, 82474, 88228, 110285, 117820, 135493, 138460, 164948, 206185, 220570, 270986, 412370, 441140, 541972, 677465, 824740, 948451, 1354930, 1896902, 2709860, 3793804, 4742255, 9484510, 18969020]

約数ペア:

[(1, 18969020), (2, 9484510), (4, 4742255), (5, 3793804), (7, 2709860), (10, 1896902), (14, 1354930), (20, 948451), (23, 824740), (28, 677465), (35, 541972), (43, 441140), (46, 412370), (70, 270986), (86, 220570), (92, 206185), (115, 164948), (137, 138460), (140, 135493), (161, 117820), (172, 110285), (215, 88228), (230, 82474), (274, 69230), (301, 63020), (322, 58910), (430, 44114), (460, 41237), (548, 34615), (602, 31510), (644, 29455), (685, 27692), (805, 23564), (860, 22057), (959, 19780), (989, 19180), (1204, 15755), (1370, 13846), (1505, 12604), (1610, 11782), (1918, 9890), (1978, 9590), (2740, 6923), (3010, 6302), (3151, 6020), (3220, 5891), (3836, 4945), (3956, 4795)]