6780420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{271}}^1$

素因数の和:425

約数の個数: 72

約数和(自身を含む): 20791680

約数和(自身を除く): 14011260

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 139, 180, 271, 278, 417, 542, 556, 695, 813, 834, 1084, 1251, 1355, 1390, 1626, 1668, 2085, 2439, 2502, 2710, 2780, 3252, 4065, 4170, 4878, 5004, 5420, 6255, 8130, 8340, 9756, 12195, 12510, 16260, 24390, 25020, 37669, 48780, 75338, 113007, 150676, 188345, 226014, 339021, 376690, 452028, 565035, 678042, 753380, 1130070, 1356084, 1695105, 2260140, 3390210, 6780420]

約数ペア:

[(1, 6780420), (2, 3390210), (3, 2260140), (4, 1695105), (5, 1356084), (6, 1130070), (9, 753380), (10, 678042), (12, 565035), (15, 452028), (18, 376690), (20, 339021), (30, 226014), (36, 188345), (45, 150676), (60, 113007), (90, 75338), (139, 48780), (180, 37669), (271, 25020), (278, 24390), (417, 16260), (542, 12510), (556, 12195), (695, 9756), (813, 8340), (834, 8130), (1084, 6255), (1251, 5420), (1355, 5004), (1390, 4878), (1626, 4170), (1668, 4065), (2085, 3252), (2439, 2780), (2502, 2710)]