18512080

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^2\times {\mathrm{641}}^1$

素因数の和:692

約数の個数: 60

約数和(自身を含む): 45495972

約数和(自身を除く): 26983892

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 361, 380, 641, 722, 760, 1282, 1444, 1520, 1805, 2564, 2888, 3205, 3610, 5128, 5776, 6410, 7220, 10256, 12179, 12820, 14440, 24358, 25640, 28880, 48716, 51280, 60895, 97432, 121790, 194864, 231401, 243580, 462802, 487160, 925604, 974320, 1157005, 1851208, 2314010, 3702416, 4628020, 9256040, 18512080]

約数ペア:

[(1, 18512080), (2, 9256040), (4, 4628020), (5, 3702416), (8, 2314010), (10, 1851208), (16, 1157005), (19, 974320), (20, 925604), (38, 487160), (40, 462802), (76, 243580), (80, 231401), (95, 194864), (152, 121790), (190, 97432), (304, 60895), (361, 51280), (380, 48716), (641, 28880), (722, 25640), (760, 24358), (1282, 14440), (1444, 12820), (1520, 12179), (1805, 10256), (2564, 7220), (2888, 6410), (3205, 5776), (3610, 5128)]