18505890

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{15817}}^1$

素因数の和:15843

約数の個数: 48

約数和(自身を含む): 51819768

約数和(自身を除く): 33313878

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 30, 39, 45, 65, 78, 90, 117, 130, 195, 234, 390, 585, 1170, 15817, 31634, 47451, 79085, 94902, 142353, 158170, 205621, 237255, 284706, 411242, 474510, 616863, 711765, 1028105, 1233726, 1423530, 1850589, 2056210, 3084315, 3701178, 6168630, 9252945, 18505890]

約数ペア:

[(1, 18505890), (2, 9252945), (3, 6168630), (5, 3701178), (6, 3084315), (9, 2056210), (10, 1850589), (13, 1423530), (15, 1233726), (18, 1028105), (26, 711765), (30, 616863), (39, 474510), (45, 411242), (65, 284706), (78, 237255), (90, 205621), (117, 158170), (130, 142353), (195, 94902), (234, 79085), (390, 47451), (585, 31634), (1170, 15817)]