395577520

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{380363}}^1$

素因数の和:380389

約数の個数: 40

約数和(自身を含む): 990467856

約数和(自身を除く): 594890336

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 380363, 760726, 1521452, 1901815, 3042904, 3803630, 4944719, 6085808, 7607260, 9889438, 15214520, 19778876, 24723595, 30429040, 39557752, 49447190, 79115504, 98894380, 197788760, 395577520]

約数ペア:

[(1, 395577520), (2, 197788760), (4, 98894380), (5, 79115504), (8, 49447190), (10, 39557752), (13, 30429040), (16, 24723595), (20, 19778876), (26, 15214520), (40, 9889438), (52, 7607260), (65, 6085808), (80, 4944719), (104, 3803630), (130, 3042904), (208, 1901815), (260, 1521452), (520, 760726), (1040, 380363)]