1640887937

素因数分解:

${\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{311}}^1\times {\mathrm{521}}^1$

素因数の和:905

約数の個数: 32

約数和(自身を含む): 1915280640

約数和(自身を除く): 274392703

約数列:

[1, 13, 19, 41, 247, 311, 521, 533, 779, 4043, 5909, 6773, 9899, 10127, 12751, 21361, 76817, 128687, 162031, 165763, 242269, 277693, 405859, 2106403, 3078589, 3149497, 5276167, 6643271, 40021657, 86362523, 126222149, 1640887937]

約数ペア:

[(1, 1640887937), (13, 126222149), (19, 86362523), (41, 40021657), (247, 6643271), (311, 5276167), (521, 3149497), (533, 3078589), (779, 2106403), (4043, 405859), (5909, 277693), (6773, 242269), (9899, 165763), (10127, 162031), (12751, 128687), (21361, 76817)]