20678190

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{1433}}^1$

素因数の和:1493

約数の個数: 64

約数和(自身を含む): 54927936

約数和(自身を除く): 34249746

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 37, 39, 65, 74, 78, 111, 130, 185, 195, 222, 370, 390, 481, 555, 962, 1110, 1433, 1443, 2405, 2866, 2886, 4299, 4810, 7165, 7215, 8598, 14330, 14430, 18629, 21495, 37258, 42990, 53021, 55887, 93145, 106042, 111774, 159063, 186290, 265105, 279435, 318126, 530210, 558870, 689273, 795315, 1378546, 1590630, 2067819, 3446365, 4135638, 6892730, 10339095, 20678190]

約数ペア:

[(1, 20678190), (2, 10339095), (3, 6892730), (5, 4135638), (6, 3446365), (10, 2067819), (13, 1590630), (15, 1378546), (26, 795315), (30, 689273), (37, 558870), (39, 530210), (65, 318126), (74, 279435), (78, 265105), (111, 186290), (130, 159063), (185, 111774), (195, 106042), (222, 93145), (370, 55887), (390, 53021), (481, 42990), (555, 37258), (962, 21495), (1110, 18629), (1433, 14430), (1443, 14330), (2405, 8598), (2866, 7215), (2886, 7165), (4299, 4810)]