20192972

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{167}}^1$

素因数の和:270

約数の個数: 48

約数和(自身を含む): 39325440

約数和(自身を除く): 19132468

約数列:

[1, 2, 4, 19, 37, 38, 43, 74, 76, 86, 148, 167, 172, 334, 668, 703, 817, 1406, 1591, 1634, 2812, 3173, 3182, 3268, 6179, 6346, 6364, 7181, 12358, 12692, 14362, 24716, 28724, 30229, 60458, 117401, 120916, 136439, 234802, 265697, 272878, 469604, 531394, 545756, 1062788, 5048243, 10096486, 20192972]

約数ペア:

[(1, 20192972), (2, 10096486), (4, 5048243), (19, 1062788), (37, 545756), (38, 531394), (43, 469604), (74, 272878), (76, 265697), (86, 234802), (148, 136439), (167, 120916), (172, 117401), (334, 60458), (668, 30229), (703, 28724), (817, 24716), (1406, 14362), (1591, 12692), (1634, 12358), (2812, 7181), (3173, 6364), (3182, 6346), (3268, 6179)]