16706980

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{107}}^1\times {\mathrm{211}}^1$

素因数の和:364

約数の個数: 48

約数和(自身を含む): 36542016

約数和(自身を除く): 19835036

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 107, 148, 185, 211, 214, 370, 422, 428, 535, 740, 844, 1055, 1070, 2110, 2140, 3959, 4220, 7807, 7918, 15614, 15836, 19795, 22577, 31228, 39035, 39590, 45154, 78070, 79180, 90308, 112885, 156140, 225770, 451540, 835349, 1670698, 3341396, 4176745, 8353490, 16706980]

約数ペア:

[(1, 16706980), (2, 8353490), (4, 4176745), (5, 3341396), (10, 1670698), (20, 835349), (37, 451540), (74, 225770), (107, 156140), (148, 112885), (185, 90308), (211, 79180), (214, 78070), (370, 45154), (422, 39590), (428, 39035), (535, 31228), (740, 22577), (844, 19795), (1055, 15836), (1070, 15614), (2110, 7918), (2140, 7807), (3959, 4220)]