81412680

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{449}}^1\times {\mathrm{1511}}^1$

素因数の和:1974

約数の個数: 64

約数和(自身を含む): 244944000

約数和(自身を除く): 163531320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 449, 898, 1347, 1511, 1796, 2245, 2694, 3022, 3592, 4490, 4533, 5388, 6044, 6735, 7555, 8980, 9066, 10776, 12088, 13470, 15110, 17960, 18132, 22665, 26940, 30220, 36264, 45330, 53880, 60440, 90660, 181320, 678439, 1356878, 2035317, 2713756, 3392195, 4070634, 5427512, 6784390, 8141268, 10176585, 13568780, 16282536, 20353170, 27137560, 40706340, 81412680]

約数ペア:

[(1, 81412680), (2, 40706340), (3, 27137560), (4, 20353170), (5, 16282536), (6, 13568780), (8, 10176585), (10, 8141268), (12, 6784390), (15, 5427512), (20, 4070634), (24, 3392195), (30, 2713756), (40, 2035317), (60, 1356878), (120, 678439), (449, 181320), (898, 90660), (1347, 60440), (1511, 53880), (1796, 45330), (2245, 36264), (2694, 30220), (3022, 26940), (3592, 22665), (4490, 18132), (4533, 17960), (5388, 15110), (6044, 13470), (6735, 12088), (7555, 10776), (8980, 9066)]