17982740

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{1279}}^1$

素因数の和:1344

約数の個数: 48

約数和(自身を含む): 40857600

約数和(自身を除く): 22874860

約数列:

[1, 2, 4, 5, 10, 19, 20, 37, 38, 74, 76, 95, 148, 185, 190, 370, 380, 703, 740, 1279, 1406, 2558, 2812, 3515, 5116, 6395, 7030, 12790, 14060, 24301, 25580, 47323, 48602, 94646, 97204, 121505, 189292, 236615, 243010, 473230, 486020, 899137, 946460, 1798274, 3596548, 4495685, 8991370, 17982740]

約数ペア:

[(1, 17982740), (2, 8991370), (4, 4495685), (5, 3596548), (10, 1798274), (19, 946460), (20, 899137), (37, 486020), (38, 473230), (74, 243010), (76, 236615), (95, 189292), (148, 121505), (185, 97204), (190, 94646), (370, 48602), (380, 47323), (703, 25580), (740, 24301), (1279, 14060), (1406, 12790), (2558, 7030), (2812, 6395), (3515, 5116)]