199952840

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{68477}}^1$

素因数の和:68561

約数の個数: 32

約数和(自身を含む): 456063480

約数和(自身を除く): 256110640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 146, 292, 365, 584, 730, 1460, 2920, 68477, 136954, 273908, 342385, 547816, 684770, 1369540, 2739080, 4998821, 9997642, 19995284, 24994105, 39990568, 49988210, 99976420, 199952840]

約数ペア:

[(1, 199952840), (2, 99976420), (4, 49988210), (5, 39990568), (8, 24994105), (10, 19995284), (20, 9997642), (40, 4998821), (73, 2739080), (146, 1369540), (292, 684770), (365, 547816), (584, 342385), (730, 273908), (1460, 136954), (2920, 68477)]