20299720

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{10357}}^1$

素因数の和:10382

約数の個数: 48

約数和(自身を含む): 53136540

約数和(自身を除く): 32836820

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 10357, 20714, 41428, 51785, 72499, 82856, 103570, 144998, 207140, 289996, 362495, 414280, 507493, 579992, 724990, 1014986, 1449980, 2029972, 2537465, 2899960, 4059944, 5074930, 10149860, 20299720]

約数ペア:

[(1, 20299720), (2, 10149860), (4, 5074930), (5, 4059944), (7, 2899960), (8, 2537465), (10, 2029972), (14, 1449980), (20, 1014986), (28, 724990), (35, 579992), (40, 507493), (49, 414280), (56, 362495), (70, 289996), (98, 207140), (140, 144998), (196, 103570), (245, 82856), (280, 72499), (392, 51785), (490, 41428), (980, 20714), (1960, 10357)]