18728390

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{2687}}^1$

素因数の和:2752

約数の個数: 32

約数和(自身を含む): 36578304

約数和(自身を除く): 17849914

約数列:

[1, 2, 5, 10, 17, 34, 41, 82, 85, 170, 205, 410, 697, 1394, 2687, 3485, 5374, 6970, 13435, 26870, 45679, 91358, 110167, 220334, 228395, 456790, 550835, 1101670, 1872839, 3745678, 9364195, 18728390]

約数ペア:

[(1, 18728390), (2, 9364195), (5, 3745678), (10, 1872839), (17, 1101670), (34, 550835), (41, 456790), (82, 228395), (85, 220334), (170, 110167), (205, 91358), (410, 45679), (697, 26870), (1394, 13435), (2687, 6970), (3485, 5374)]