25745220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{281}}^1\times {\mathrm{509}}^1$

素因数の和:805

約数の個数: 72

約数和(自身を含む): 78525720

約数和(自身を除く): 52780500

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 281, 509, 562, 843, 1018, 1124, 1405, 1527, 1686, 2036, 2529, 2545, 2810, 3054, 3372, 4215, 4581, 5058, 5090, 5620, 6108, 7635, 8430, 9162, 10116, 10180, 12645, 15270, 16860, 18324, 22905, 25290, 30540, 45810, 50580, 91620, 143029, 286058, 429087, 572116, 715145, 858174, 1287261, 1430290, 1716348, 2145435, 2574522, 2860580, 4290870, 5149044, 6436305, 8581740, 12872610, 25745220]

約数ペア:

[(1, 25745220), (2, 12872610), (3, 8581740), (4, 6436305), (5, 5149044), (6, 4290870), (9, 2860580), (10, 2574522), (12, 2145435), (15, 1716348), (18, 1430290), (20, 1287261), (30, 858174), (36, 715145), (45, 572116), (60, 429087), (90, 286058), (180, 143029), (281, 91620), (509, 50580), (562, 45810), (843, 30540), (1018, 25290), (1124, 22905), (1405, 18324), (1527, 16860), (1686, 15270), (2036, 12645), (2529, 10180), (2545, 10116), (2810, 9162), (3054, 8430), (3372, 7635), (4215, 6108), (4581, 5620), (5058, 5090)]