197907440

素因数分解:

$2^4\times 5^1\times {\mathrm{887}}^1\times {\mathrm{2789}}^1$

素因数の和:3689

約数の個数: 40

約数和(自身を含む): 460818720

約数和(自身を除く): 262911280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 887, 1774, 2789, 3548, 4435, 5578, 7096, 8870, 11156, 13945, 14192, 17740, 22312, 27890, 35480, 44624, 55780, 70960, 111560, 223120, 2473843, 4947686, 9895372, 12369215, 19790744, 24738430, 39581488, 49476860, 98953720, 197907440]

約数ペア:

[(1, 197907440), (2, 98953720), (4, 49476860), (5, 39581488), (8, 24738430), (10, 19790744), (16, 12369215), (20, 9895372), (40, 4947686), (80, 2473843), (887, 223120), (1774, 111560), (2789, 70960), (3548, 55780), (4435, 44624), (5578, 35480), (7096, 27890), (8870, 22312), (11156, 17740), (13945, 14192)]