20344820

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{1447}}^1$

素因数の和:1512

約数の個数: 48

約数和(自身を含む): 46220160

約数和(自身を除く): 25875340

約数列:

[1, 2, 4, 5, 10, 19, 20, 37, 38, 74, 76, 95, 148, 185, 190, 370, 380, 703, 740, 1406, 1447, 2812, 2894, 3515, 5788, 7030, 7235, 14060, 14470, 27493, 28940, 53539, 54986, 107078, 109972, 137465, 214156, 267695, 274930, 535390, 549860, 1017241, 1070780, 2034482, 4068964, 5086205, 10172410, 20344820]

約数ペア:

[(1, 20344820), (2, 10172410), (4, 5086205), (5, 4068964), (10, 2034482), (19, 1070780), (20, 1017241), (37, 549860), (38, 535390), (74, 274930), (76, 267695), (95, 214156), (148, 137465), (185, 109972), (190, 107078), (370, 54986), (380, 53539), (703, 28940), (740, 27493), (1406, 14470), (1447, 14060), (2812, 7235), (2894, 7030), (3515, 5788)]