81475460

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{6277}}^1$

素因数の和:6356

約数の個数: 48

約数和(自身を含む): 189846720

約数和(自身を除く): 108371260

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 59, 110, 118, 220, 236, 295, 590, 649, 1180, 1298, 2596, 3245, 6277, 6490, 12554, 12980, 25108, 31385, 62770, 69047, 125540, 138094, 276188, 345235, 370343, 690470, 740686, 1380940, 1481372, 1851715, 3703430, 4073773, 7406860, 8147546, 16295092, 20368865, 40737730, 81475460]

約数ペア:

[(1, 81475460), (2, 40737730), (4, 20368865), (5, 16295092), (10, 8147546), (11, 7406860), (20, 4073773), (22, 3703430), (44, 1851715), (55, 1481372), (59, 1380940), (110, 740686), (118, 690470), (220, 370343), (236, 345235), (295, 276188), (590, 138094), (649, 125540), (1180, 69047), (1298, 62770), (2596, 31385), (3245, 25108), (6277, 12980), (6490, 12554)]