18129780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{2143}}^1$

素因数の和:2205

約数の個数: 72

約数和(自身を含む): 56189952

約数和(自身を除く): 38060172

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 47, 60, 90, 94, 141, 180, 188, 235, 282, 423, 470, 564, 705, 846, 940, 1410, 1692, 2115, 2143, 2820, 4230, 4286, 6429, 8460, 8572, 10715, 12858, 19287, 21430, 25716, 32145, 38574, 42860, 64290, 77148, 96435, 100721, 128580, 192870, 201442, 302163, 385740, 402884, 503605, 604326, 906489, 1007210, 1208652, 1510815, 1812978, 2014420, 3021630, 3625956, 4532445, 6043260, 9064890, 18129780]

約数ペア:

[(1, 18129780), (2, 9064890), (3, 6043260), (4, 4532445), (5, 3625956), (6, 3021630), (9, 2014420), (10, 1812978), (12, 1510815), (15, 1208652), (18, 1007210), (20, 906489), (30, 604326), (36, 503605), (45, 402884), (47, 385740), (60, 302163), (90, 201442), (94, 192870), (141, 128580), (180, 100721), (188, 96435), (235, 77148), (282, 64290), (423, 42860), (470, 38574), (564, 32145), (705, 25716), (846, 21430), (940, 19287), (1410, 12858), (1692, 10715), (2115, 8572), (2143, 8460), (2820, 6429), (4230, 4286)]