1278180

素因数分解:

$2^2\times 3^5\times 5^1\times {\mathrm{263}}^1$

素因数の和:287

約数の個数: 72

約数和(自身を含む): 4036032

約数和(自身を除く): 2757852

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 243, 263, 270, 324, 405, 486, 526, 540, 789, 810, 972, 1052, 1215, 1315, 1578, 1620, 2367, 2430, 2630, 3156, 3945, 4734, 4860, 5260, 7101, 7890, 9468, 11835, 14202, 15780, 21303, 23670, 28404, 35505, 42606, 47340, 63909, 71010, 85212, 106515, 127818, 142020, 213030, 255636, 319545, 426060, 639090, 1278180]

約数ペア:

[(1, 1278180), (2, 639090), (3, 426060), (4, 319545), (5, 255636), (6, 213030), (9, 142020), (10, 127818), (12, 106515), (15, 85212), (18, 71010), (20, 63909), (27, 47340), (30, 42606), (36, 35505), (45, 28404), (54, 23670), (60, 21303), (81, 15780), (90, 14202), (108, 11835), (135, 9468), (162, 7890), (180, 7101), (243, 5260), (263, 4860), (270, 4734), (324, 3945), (405, 3156), (486, 2630), (526, 2430), (540, 2367), (789, 1620), (810, 1578), (972, 1315), (1052, 1215)]