161736380

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{109}}^1\times {\mathrm{439}}^1$

素因数の和:583

約数の個数: 72

約数和(自身を含む): 372002400

約数和(自身を除く): 210266020

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 109, 130, 169, 218, 260, 338, 436, 439, 545, 676, 845, 878, 1090, 1417, 1690, 1756, 2180, 2195, 2834, 3380, 4390, 5668, 5707, 7085, 8780, 11414, 14170, 18421, 22828, 28340, 28535, 36842, 47851, 57070, 73684, 74191, 92105, 95702, 114140, 148382, 184210, 191404, 239255, 296764, 368420, 370955, 478510, 622063, 741910, 957020, 1244126, 1483820, 2488252, 3110315, 6220630, 8086819, 12441260, 16173638, 32347276, 40434095, 80868190, 161736380]

約数ペア:

[(1, 161736380), (2, 80868190), (4, 40434095), (5, 32347276), (10, 16173638), (13, 12441260), (20, 8086819), (26, 6220630), (52, 3110315), (65, 2488252), (109, 1483820), (130, 1244126), (169, 957020), (218, 741910), (260, 622063), (338, 478510), (436, 370955), (439, 368420), (545, 296764), (676, 239255), (845, 191404), (878, 184210), (1090, 148382), (1417, 114140), (1690, 95702), (1756, 92105), (2180, 74191), (2195, 73684), (2834, 57070), (3380, 47851), (4390, 36842), (5668, 28535), (5707, 28340), (7085, 22828), (8780, 18421), (11414, 14170)]