19161880

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^2\times {\mathrm{1327}}^1$

素因数の和:1376

約数の個数: 48

約数和(自身を含む): 45537120

約数和(自身を除く): 26375240

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 361, 380, 722, 760, 1327, 1444, 1805, 2654, 2888, 3610, 5308, 6635, 7220, 10616, 13270, 14440, 25213, 26540, 50426, 53080, 100852, 126065, 201704, 252130, 479047, 504260, 958094, 1008520, 1916188, 2395235, 3832376, 4790470, 9580940, 19161880]

約数ペア:

[(1, 19161880), (2, 9580940), (4, 4790470), (5, 3832376), (8, 2395235), (10, 1916188), (19, 1008520), (20, 958094), (38, 504260), (40, 479047), (76, 252130), (95, 201704), (152, 126065), (190, 100852), (361, 53080), (380, 50426), (722, 26540), (760, 25213), (1327, 14440), (1444, 13270), (1805, 10616), (2654, 7220), (2888, 6635), (3610, 5308)]