25320420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{863}}^1$

素因数の和:1041

約数の個数: 72

約数和(自身を含む): 77366016

約数和(自身を除く): 52045596

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, 863, 978, 1467, 1630, 1726, 1956, 2445, 2589, 2934, 3260, 3452, 4315, 4890, 5178, 5868, 7335, 7767, 8630, 9780, 10356, 12945, 14670, 15534, 17260, 25890, 29340, 31068, 38835, 51780, 77670, 140669, 155340, 281338, 422007, 562676, 703345, 844014, 1266021, 1406690, 1688028, 2110035, 2532042, 2813380, 4220070, 5064084, 6330105, 8440140, 12660210, 25320420]

約数ペア:

[(1, 25320420), (2, 12660210), (3, 8440140), (4, 6330105), (5, 5064084), (6, 4220070), (9, 2813380), (10, 2532042), (12, 2110035), (15, 1688028), (18, 1406690), (20, 1266021), (30, 844014), (36, 703345), (45, 562676), (60, 422007), (90, 281338), (163, 155340), (180, 140669), (326, 77670), (489, 51780), (652, 38835), (815, 31068), (863, 29340), (978, 25890), (1467, 17260), (1630, 15534), (1726, 14670), (1956, 12945), (2445, 10356), (2589, 9780), (2934, 8630), (3260, 7767), (3452, 7335), (4315, 5868), (4890, 5178)]