72747780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{173209}}^1$

素因数の和:173228

約数の個数: 48

約数和(自身を含む): 232794240

約数和(自身を除く): 160046460

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 173209, 346418, 519627, 692836, 866045, 1039254, 1212463, 1732090, 2078508, 2424926, 2598135, 3464180, 3637389, 4849852, 5196270, 6062315, 7274778, 10392540, 12124630, 14549556, 18186945, 24249260, 36373890, 72747780]

約数ペア:

[(1, 72747780), (2, 36373890), (3, 24249260), (4, 18186945), (5, 14549556), (6, 12124630), (7, 10392540), (10, 7274778), (12, 6062315), (14, 5196270), (15, 4849852), (20, 3637389), (21, 3464180), (28, 2598135), (30, 2424926), (35, 2078508), (42, 1732090), (60, 1212463), (70, 1039254), (84, 866045), (105, 692836), (140, 519627), (210, 346418), (420, 173209)]