2689980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{107}}^1\times {\mathrm{419}}^1$

素因数の和:538

約数の個数: 48

約数和(自身を含む): 7620480

約数和(自身を除く): 4930500

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 107, 214, 321, 419, 428, 535, 642, 838, 1070, 1257, 1284, 1605, 1676, 2095, 2140, 2514, 3210, 4190, 5028, 6285, 6420, 8380, 12570, 25140, 44833, 89666, 134499, 179332, 224165, 268998, 448330, 537996, 672495, 896660, 1344990, 2689980]

約数ペア:

[(1, 2689980), (2, 1344990), (3, 896660), (4, 672495), (5, 537996), (6, 448330), (10, 268998), (12, 224165), (15, 179332), (20, 134499), (30, 89666), (60, 44833), (107, 25140), (214, 12570), (321, 8380), (419, 6420), (428, 6285), (535, 5028), (642, 4190), (838, 3210), (1070, 2514), (1257, 2140), (1284, 2095), (1605, 1676)]