20177440

素因数分解:

$2^5\times 5^1\times {\mathrm{23}}^1\times {\mathrm{5483}}^1$

素因数の和:5521

約数の個数: 48

約数和(自身を含む): 49750848

約数和(自身を除く): 29573408

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 80, 92, 115, 160, 184, 230, 368, 460, 736, 920, 1840, 3680, 5483, 10966, 21932, 27415, 43864, 54830, 87728, 109660, 126109, 175456, 219320, 252218, 438640, 504436, 630545, 877280, 1008872, 1261090, 2017744, 2522180, 4035488, 5044360, 10088720, 20177440]

約数ペア:

[(1, 20177440), (2, 10088720), (4, 5044360), (5, 4035488), (8, 2522180), (10, 2017744), (16, 1261090), (20, 1008872), (23, 877280), (32, 630545), (40, 504436), (46, 438640), (80, 252218), (92, 219320), (115, 175456), (160, 126109), (184, 109660), (230, 87728), (368, 54830), (460, 43864), (736, 27415), (920, 21932), (1840, 10966), (3680, 5483)]