249390

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{163}}^1$

素因数の和:193

約数の個数: 48

約数和(自身を含む): 690768

約数和(自身を除く): 441378

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 17, 18, 30, 34, 45, 51, 85, 90, 102, 153, 163, 170, 255, 306, 326, 489, 510, 765, 815, 978, 1467, 1530, 1630, 2445, 2771, 2934, 4890, 5542, 7335, 8313, 13855, 14670, 16626, 24939, 27710, 41565, 49878, 83130, 124695, 249390]

約数ペア:

[(1, 249390), (2, 124695), (3, 83130), (5, 49878), (6, 41565), (9, 27710), (10, 24939), (15, 16626), (17, 14670), (18, 13855), (30, 8313), (34, 7335), (45, 5542), (51, 4890), (85, 2934), (90, 2771), (102, 2445), (153, 1630), (163, 1530), (170, 1467), (255, 978), (306, 815), (326, 765), (489, 510)]