19367980

素因数分解:

$2^2\times 5^1\times {\mathrm{653}}^1\times {\mathrm{1483}}^1$

素因数の和:2145

約数の個数: 24

約数和(自身を含む): 40762512

約数和(自身を除く): 21394532

約数列:

[1, 2, 4, 5, 10, 20, 653, 1306, 1483, 2612, 2966, 3265, 5932, 6530, 7415, 13060, 14830, 29660, 968399, 1936798, 3873596, 4841995, 9683990, 19367980]

約数ペア:

[(1, 19367980), (2, 9683990), (4, 4841995), (5, 3873596), (10, 1936798), (20, 968399), (653, 29660), (1306, 14830), (1483, 13060), (2612, 7415), (2966, 6530), (3265, 5932)]