20489752

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{163}}^1\times {\mathrm{827}}^1$

素因数の和:1015

約数の個数: 32

約数和(自身を含む): 40737600

約数和(自身を除く): 20247848

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 163, 326, 652, 827, 1304, 1654, 3097, 3308, 6194, 6616, 12388, 15713, 24776, 31426, 62852, 125704, 134801, 269602, 539204, 1078408, 2561219, 5122438, 10244876, 20489752]

約数ペア:

[(1, 20489752), (2, 10244876), (4, 5122438), (8, 2561219), (19, 1078408), (38, 539204), (76, 269602), (152, 134801), (163, 125704), (326, 62852), (652, 31426), (827, 24776), (1304, 15713), (1654, 12388), (3097, 6616), (3308, 6194)]