20029808

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{211}}^1\times {\mathrm{349}}^1$

素因数の和:585

約数の個数: 40

約数和(自身を含む): 41403600

約数和(自身を除く): 21373792

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 211, 272, 349, 422, 698, 844, 1396, 1688, 2792, 3376, 3587, 5584, 5933, 7174, 11866, 14348, 23732, 28696, 47464, 57392, 73639, 94928, 147278, 294556, 589112, 1178224, 1251863, 2503726, 5007452, 10014904, 20029808]

約数ペア:

[(1, 20029808), (2, 10014904), (4, 5007452), (8, 2503726), (16, 1251863), (17, 1178224), (34, 589112), (68, 294556), (136, 147278), (211, 94928), (272, 73639), (349, 57392), (422, 47464), (698, 28696), (844, 23732), (1396, 14348), (1688, 11866), (2792, 7174), (3376, 5933), (3587, 5584)]