28451340

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{263}}^1\times {\mathrm{601}}^1$

素因数の和:879

約数の個数: 72

約数和(自身を含む): 86774688

約数和(自身を除く): 58323348

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 263, 526, 601, 789, 1052, 1202, 1315, 1578, 1803, 2367, 2404, 2630, 3005, 3156, 3606, 3945, 4734, 5260, 5409, 6010, 7212, 7890, 9015, 9468, 10818, 11835, 12020, 15780, 18030, 21636, 23670, 27045, 36060, 47340, 54090, 108180, 158063, 316126, 474189, 632252, 790315, 948378, 1422567, 1580630, 1896756, 2370945, 2845134, 3161260, 4741890, 5690268, 7112835, 9483780, 14225670, 28451340]

約数ペア:

[(1, 28451340), (2, 14225670), (3, 9483780), (4, 7112835), (5, 5690268), (6, 4741890), (9, 3161260), (10, 2845134), (12, 2370945), (15, 1896756), (18, 1580630), (20, 1422567), (30, 948378), (36, 790315), (45, 632252), (60, 474189), (90, 316126), (180, 158063), (263, 108180), (526, 54090), (601, 47340), (789, 36060), (1052, 27045), (1202, 23670), (1315, 21636), (1578, 18030), (1803, 15780), (2367, 12020), (2404, 11835), (2630, 10818), (3005, 9468), (3156, 9015), (3606, 7890), (3945, 7212), (4734, 6010), (5260, 5409)]