20312032

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{311}}^1$

素因数の和:491

約数の個数: 48

約数和(自身を含む): 43479072

約数和(自身を除く): 23167040

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 157, 208, 311, 314, 416, 622, 628, 1244, 1256, 2041, 2488, 2512, 4043, 4082, 4976, 5024, 8086, 8164, 9952, 16172, 16328, 32344, 32656, 48827, 64688, 65312, 97654, 129376, 195308, 390616, 634751, 781232, 1269502, 1562464, 2539004, 5078008, 10156016, 20312032]

約数ペア:

[(1, 20312032), (2, 10156016), (4, 5078008), (8, 2539004), (13, 1562464), (16, 1269502), (26, 781232), (32, 634751), (52, 390616), (104, 195308), (157, 129376), (208, 97654), (311, 65312), (314, 64688), (416, 48827), (622, 32656), (628, 32344), (1244, 16328), (1256, 16172), (2041, 9952), (2488, 8164), (2512, 8086), (4043, 5024), (4082, 4976)]