19660880

素因数分解:

$2^4\times 5^1\times {\mathrm{53}}^1\times {\mathrm{4637}}^1$

素因数の和:4703

約数の個数: 40

約数和(自身を含む): 46584072

約数和(自身を除く): 26923192

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 53, 80, 106, 212, 265, 424, 530, 848, 1060, 2120, 4240, 4637, 9274, 18548, 23185, 37096, 46370, 74192, 92740, 185480, 245761, 370960, 491522, 983044, 1228805, 1966088, 2457610, 3932176, 4915220, 9830440, 19660880]

約数ペア:

[(1, 19660880), (2, 9830440), (4, 4915220), (5, 3932176), (8, 2457610), (10, 1966088), (16, 1228805), (20, 983044), (40, 491522), (53, 370960), (80, 245761), (106, 185480), (212, 92740), (265, 74192), (424, 46370), (530, 37096), (848, 23185), (1060, 18548), (2120, 9274), (4240, 4637)]