20778922016

素因数分解:

$2^5\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{688591}}^1$

素因数の和:688665

約数の個数: 48

約数和(自身を含む): 43728346368

約数和(自身を除く): 22949424352

約数列:

[1, 2, 4, 8, 16, 23, 32, 41, 46, 82, 92, 164, 184, 328, 368, 656, 736, 943, 1312, 1886, 3772, 7544, 15088, 30176, 688591, 1377182, 2754364, 5508728, 11017456, 15837593, 22034912, 28232231, 31675186, 56464462, 63350372, 112928924, 126700744, 225857848, 253401488, 451715696, 506802976, 649341313, 903431392, 1298682626, 2597365252, 5194730504, 10389461008, 20778922016]

約数ペア:

[(1, 20778922016), (2, 10389461008), (4, 5194730504), (8, 2597365252), (16, 1298682626), (23, 903431392), (32, 649341313), (41, 506802976), (46, 451715696), (82, 253401488), (92, 225857848), (164, 126700744), (184, 112928924), (328, 63350372), (368, 56464462), (656, 31675186), (736, 28232231), (943, 22034912), (1312, 15837593), (1886, 11017456), (3772, 5508728), (7544, 2754364), (15088, 1377182), (30176, 688591)]