28120570

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^2\times {\mathrm{67}}^1$

素因数の和:187

約数の個数: 48

約数和(自身を含む): 55251360

約数和(自身を除く): 27130790

約数列:

[1, 2, 5, 10, 19, 38, 47, 67, 94, 95, 134, 190, 235, 335, 470, 670, 893, 1273, 1786, 2209, 2546, 3149, 4418, 4465, 6298, 6365, 8930, 11045, 12730, 15745, 22090, 31490, 41971, 59831, 83942, 119662, 148003, 209855, 296006, 299155, 419710, 598310, 740015, 1480030, 2812057, 5624114, 14060285, 28120570]

約数ペア:

[(1, 28120570), (2, 14060285), (5, 5624114), (10, 2812057), (19, 1480030), (38, 740015), (47, 598310), (67, 419710), (94, 299155), (95, 296006), (134, 209855), (190, 148003), (235, 119662), (335, 83942), (470, 59831), (670, 41971), (893, 31490), (1273, 22090), (1786, 15745), (2209, 12730), (2546, 11045), (3149, 8930), (4418, 6365), (4465, 6298)]