165767804920

素因数分解:

$2^3\times 5^1\times {\mathrm{641}}^1\times {\mathrm{6465203}}^1$

素因数の和:6465855

約数の個数: 32

約数和(自身を含む): 373559487120

約数和(自身を除く): 207791682200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 641, 1282, 2564, 3205, 5128, 6410, 12820, 25640, 6465203, 12930406, 25860812, 32326015, 51721624, 64652030, 129304060, 258608120, 4144195123, 8288390246, 16576780492, 20720975615, 33153560984, 41441951230, 82883902460, 165767804920]

約数ペア:

[(1, 165767804920), (2, 82883902460), (4, 41441951230), (5, 33153560984), (8, 20720975615), (10, 16576780492), (20, 8288390246), (40, 4144195123), (641, 258608120), (1282, 129304060), (2564, 64652030), (3205, 51721624), (5128, 32326015), (6410, 25860812), (12820, 12930406), (25640, 6465203)]