80011280

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{52639}}^1$

素因数の和:52671

約数の個数: 40

約数和(自身を含む): 195820800

約数和(自身を除く): 115809520

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 52639, 105278, 210556, 263195, 421112, 526390, 842224, 1000141, 1052780, 2000282, 2105560, 4000564, 4211120, 5000705, 8001128, 10001410, 16002256, 20002820, 40005640, 80011280]

約数ペア:

[(1, 80011280), (2, 40005640), (4, 20002820), (5, 16002256), (8, 10001410), (10, 8001128), (16, 5000705), (19, 4211120), (20, 4000564), (38, 2105560), (40, 2000282), (76, 1052780), (80, 1000141), (95, 842224), (152, 526390), (190, 421112), (304, 263195), (380, 210556), (760, 105278), (1520, 52639)]