201217880

素因数分解:

$2^3\times 5^1\times {\mathrm{509}}^1\times {\mathrm{9883}}^1$

素因数の和:10403

約数の個数: 32

約数和(自身を含む): 453675600

約数和(自身を除く): 252457720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 509, 1018, 2036, 2545, 4072, 5090, 9883, 10180, 19766, 20360, 39532, 49415, 79064, 98830, 197660, 395320, 5030447, 10060894, 20121788, 25152235, 40243576, 50304470, 100608940, 201217880]

約数ペア:

[(1, 201217880), (2, 100608940), (4, 50304470), (5, 40243576), (8, 25152235), (10, 20121788), (20, 10060894), (40, 5030447), (509, 395320), (1018, 197660), (2036, 98830), (2545, 79064), (4072, 49415), (5090, 39532), (9883, 20360), (10180, 19766)]