25831428

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{197}}^1\times {\mathrm{223}}^1$

素因数の和:441

約数の個数: 72

約数和(自身を含む): 70785792

約数和(自身を除く): 44954364

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 84, 98, 147, 196, 197, 223, 294, 394, 446, 588, 591, 669, 788, 892, 1182, 1338, 1379, 1561, 2364, 2676, 2758, 3122, 4137, 4683, 5516, 6244, 8274, 9366, 9653, 10927, 16548, 18732, 19306, 21854, 28959, 32781, 38612, 43708, 43931, 57918, 65562, 87862, 115836, 131124, 131793, 175724, 263586, 307517, 527172, 615034, 922551, 1230068, 1845102, 2152619, 3690204, 4305238, 6457857, 8610476, 12915714, 25831428]

約数ペア:

[(1, 25831428), (2, 12915714), (3, 8610476), (4, 6457857), (6, 4305238), (7, 3690204), (12, 2152619), (14, 1845102), (21, 1230068), (28, 922551), (42, 615034), (49, 527172), (84, 307517), (98, 263586), (147, 175724), (196, 131793), (197, 131124), (223, 115836), (294, 87862), (394, 65562), (446, 57918), (588, 43931), (591, 43708), (669, 38612), (788, 32781), (892, 28959), (1182, 21854), (1338, 19306), (1379, 18732), (1561, 16548), (2364, 10927), (2676, 9653), (2758, 9366), (3122, 8274), (4137, 6244), (4683, 5516)]