201991890

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{263}}^1\times {\mathrm{25601}}^1$

素因数の和:25874

約数の個数: 32

約数和(自身を含む): 486642816

約数和(自身を除く): 284650926

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 263, 526, 789, 1315, 1578, 2630, 3945, 7890, 25601, 51202, 76803, 128005, 153606, 256010, 384015, 768030, 6733063, 13466126, 20199189, 33665315, 40398378, 67330630, 100995945, 201991890]

約数ペア:

[(1, 201991890), (2, 100995945), (3, 67330630), (5, 40398378), (6, 33665315), (10, 20199189), (15, 13466126), (30, 6733063), (263, 768030), (526, 384015), (789, 256010), (1315, 153606), (1578, 128005), (2630, 76803), (3945, 51202), (7890, 25601)]