201299720

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{389}}^1\times {\mathrm{761}}^1$

素因数の和:1178

約数の個数: 64

約数和(自身を含む): 481431600

約数和(自身を除く): 280131880

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 389, 680, 761, 778, 1522, 1556, 1945, 3044, 3112, 3805, 3890, 6088, 6613, 7610, 7780, 12937, 13226, 15220, 15560, 25874, 26452, 30440, 33065, 51748, 52904, 64685, 66130, 103496, 129370, 132260, 258740, 264520, 296029, 517480, 592058, 1184116, 1480145, 2368232, 2960290, 5032493, 5920580, 10064986, 11841160, 20129972, 25162465, 40259944, 50324930, 100649860, 201299720]

約数ペア:

[(1, 201299720), (2, 100649860), (4, 50324930), (5, 40259944), (8, 25162465), (10, 20129972), (17, 11841160), (20, 10064986), (34, 5920580), (40, 5032493), (68, 2960290), (85, 2368232), (136, 1480145), (170, 1184116), (340, 592058), (389, 517480), (680, 296029), (761, 264520), (778, 258740), (1522, 132260), (1556, 129370), (1945, 103496), (3044, 66130), (3112, 64685), (3805, 52904), (3890, 51748), (6088, 33065), (6613, 30440), (7610, 26452), (7780, 25874), (12937, 15560), (13226, 15220)]