31129740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{1061}}^1$

素因数の和:1239

約数の個数: 72

約数和(自身を含む): 95095728

約数和(自身を除く): 63965988

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 163, 180, 326, 489, 652, 815, 978, 1061, 1467, 1630, 1956, 2122, 2445, 2934, 3183, 3260, 4244, 4890, 5305, 5868, 6366, 7335, 9549, 9780, 10610, 12732, 14670, 15915, 19098, 21220, 29340, 31830, 38196, 47745, 63660, 95490, 172943, 190980, 345886, 518829, 691772, 864715, 1037658, 1556487, 1729430, 2075316, 2594145, 3112974, 3458860, 5188290, 6225948, 7782435, 10376580, 15564870, 31129740]

約数ペア:

[(1, 31129740), (2, 15564870), (3, 10376580), (4, 7782435), (5, 6225948), (6, 5188290), (9, 3458860), (10, 3112974), (12, 2594145), (15, 2075316), (18, 1729430), (20, 1556487), (30, 1037658), (36, 864715), (45, 691772), (60, 518829), (90, 345886), (163, 190980), (180, 172943), (326, 95490), (489, 63660), (652, 47745), (815, 38196), (978, 31830), (1061, 29340), (1467, 21220), (1630, 19098), (1956, 15915), (2122, 14670), (2445, 12732), (2934, 10610), (3183, 9780), (3260, 9549), (4244, 7335), (4890, 6366), (5305, 5868)]