25545420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{1021}}^1$

素因数の和:1175

約数の個数: 72

約数和(自身を含む): 78121680

約数和(自身を除く): 52576260

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 139, 180, 278, 417, 556, 695, 834, 1021, 1251, 1390, 1668, 2042, 2085, 2502, 2780, 3063, 4084, 4170, 5004, 5105, 6126, 6255, 8340, 9189, 10210, 12252, 12510, 15315, 18378, 20420, 25020, 30630, 36756, 45945, 61260, 91890, 141919, 183780, 283838, 425757, 567676, 709595, 851514, 1277271, 1419190, 1703028, 2128785, 2554542, 2838380, 4257570, 5109084, 6386355, 8515140, 12772710, 25545420]

約数ペア:

[(1, 25545420), (2, 12772710), (3, 8515140), (4, 6386355), (5, 5109084), (6, 4257570), (9, 2838380), (10, 2554542), (12, 2128785), (15, 1703028), (18, 1419190), (20, 1277271), (30, 851514), (36, 709595), (45, 567676), (60, 425757), (90, 283838), (139, 183780), (180, 141919), (278, 91890), (417, 61260), (556, 45945), (695, 36756), (834, 30630), (1021, 25020), (1251, 20420), (1390, 18378), (1668, 15315), (2042, 12510), (2085, 12252), (2502, 10210), (2780, 9189), (3063, 8340), (4084, 6255), (4170, 6126), (5004, 5105)]