8689840

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{5717}}^1$

素因数の和:5749

約数の個数: 40

約数和(自身を含む): 21270960

約数和(自身を除く): 12581120

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 5717, 11434, 22868, 28585, 45736, 57170, 91472, 108623, 114340, 217246, 228680, 434492, 457360, 543115, 868984, 1086230, 1737968, 2172460, 4344920, 8689840]

約数ペア:

[(1, 8689840), (2, 4344920), (4, 2172460), (5, 1737968), (8, 1086230), (10, 868984), (16, 543115), (19, 457360), (20, 434492), (38, 228680), (40, 217246), (76, 114340), (80, 108623), (95, 91472), (152, 57170), (190, 45736), (304, 28585), (380, 22868), (760, 11434), (1520, 5717)]