18388040

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^2\times {\mathrm{79}}^1$

素因数の和:147

約数の個数: 96

約数和(自身を含む): 47779200

約数和(自身を除く): 29391160

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 23, 40, 44, 46, 55, 79, 88, 92, 110, 115, 158, 184, 220, 230, 253, 316, 395, 440, 460, 506, 529, 632, 790, 869, 920, 1012, 1058, 1265, 1580, 1738, 1817, 2024, 2116, 2530, 2645, 3160, 3476, 3634, 4232, 4345, 5060, 5290, 5819, 6952, 7268, 8690, 9085, 10120, 10580, 11638, 14536, 17380, 18170, 19987, 21160, 23276, 29095, 34760, 36340, 39974, 41791, 46552, 58190, 72680, 79948, 83582, 99935, 116380, 159896, 167164, 199870, 208955, 232760, 334328, 399740, 417910, 459701, 799480, 835820, 919402, 1671640, 1838804, 2298505, 3677608, 4597010, 9194020, 18388040]

約数ペア:

[(1, 18388040), (2, 9194020), (4, 4597010), (5, 3677608), (8, 2298505), (10, 1838804), (11, 1671640), (20, 919402), (22, 835820), (23, 799480), (40, 459701), (44, 417910), (46, 399740), (55, 334328), (79, 232760), (88, 208955), (92, 199870), (110, 167164), (115, 159896), (158, 116380), (184, 99935), (220, 83582), (230, 79948), (253, 72680), (316, 58190), (395, 46552), (440, 41791), (460, 39974), (506, 36340), (529, 34760), (632, 29095), (790, 23276), (869, 21160), (920, 19987), (1012, 18170), (1058, 17380), (1265, 14536), (1580, 11638), (1738, 10580), (1817, 10120), (2024, 9085), (2116, 8690), (2530, 7268), (2645, 6952), (3160, 5819), (3476, 5290), (3634, 5060), (4232, 4345)]