39975980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{16519}}^1$

素因数の和:16550

約数の個数: 36

約数和(自身を含む): 92280720

約数和(自身を除く): 52304740

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 1210, 2420, 16519, 33038, 66076, 82595, 165190, 181709, 330380, 363418, 726836, 908545, 1817090, 1998799, 3634180, 3997598, 7995196, 9993995, 19987990, 39975980]

約数ペア:

[(1, 39975980), (2, 19987990), (4, 9993995), (5, 7995196), (10, 3997598), (11, 3634180), (20, 1998799), (22, 1817090), (44, 908545), (55, 726836), (110, 363418), (121, 330380), (220, 181709), (242, 165190), (484, 82595), (605, 66076), (1210, 33038), (2420, 16519)]