72554540

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{431}}^1\times {\mathrm{443}}^1$

素因数の和:902

約数の個数: 48

約数和(自身を含む): 161118720

約数和(自身を除く): 88564180

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 431, 443, 862, 886, 1724, 1772, 2155, 2215, 4310, 4430, 8189, 8417, 8620, 8860, 16378, 16834, 32756, 33668, 40945, 42085, 81890, 84170, 163780, 168340, 190933, 381866, 763732, 954665, 1909330, 3627727, 3818660, 7255454, 14510908, 18138635, 36277270, 72554540]

約数ペア:

[(1, 72554540), (2, 36277270), (4, 18138635), (5, 14510908), (10, 7255454), (19, 3818660), (20, 3627727), (38, 1909330), (76, 954665), (95, 763732), (190, 381866), (380, 190933), (431, 168340), (443, 163780), (862, 84170), (886, 81890), (1724, 42085), (1772, 40945), (2155, 33668), (2215, 32756), (4310, 16834), (4430, 16378), (8189, 8860), (8417, 8620)]