18722730

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{787}}^1$

素因数の和:871

約数の個数: 64

約数和(自身を含む): 49246848

約数和(自身を除く): 30524118

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 61, 65, 78, 122, 130, 183, 195, 305, 366, 390, 610, 787, 793, 915, 1574, 1586, 1830, 2361, 2379, 3935, 3965, 4722, 4758, 7870, 7930, 10231, 11805, 11895, 20462, 23610, 23790, 30693, 48007, 51155, 61386, 96014, 102310, 144021, 153465, 240035, 288042, 306930, 480070, 624091, 720105, 1248182, 1440210, 1872273, 3120455, 3744546, 6240910, 9361365, 18722730]

約数ペア:

[(1, 18722730), (2, 9361365), (3, 6240910), (5, 3744546), (6, 3120455), (10, 1872273), (13, 1440210), (15, 1248182), (26, 720105), (30, 624091), (39, 480070), (61, 306930), (65, 288042), (78, 240035), (122, 153465), (130, 144021), (183, 102310), (195, 96014), (305, 61386), (366, 51155), (390, 48007), (610, 30693), (787, 23790), (793, 23610), (915, 20462), (1574, 11895), (1586, 11805), (1830, 10231), (2361, 7930), (2379, 7870), (3935, 4758), (3965, 4722)]