28019640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{21227}}^1$

素因数の和:21252

約数の個数: 64

約数和(自身を含む): 91704960

約数和(自身を除く): 63685320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 66, 88, 110, 120, 132, 165, 220, 264, 330, 440, 660, 1320, 21227, 42454, 63681, 84908, 106135, 127362, 169816, 212270, 233497, 254724, 318405, 424540, 466994, 509448, 636810, 700491, 849080, 933988, 1167485, 1273620, 1400982, 1867976, 2334970, 2547240, 2801964, 3502455, 4669940, 5603928, 7004910, 9339880, 14009820, 28019640]

約数ペア:

[(1, 28019640), (2, 14009820), (3, 9339880), (4, 7004910), (5, 5603928), (6, 4669940), (8, 3502455), (10, 2801964), (11, 2547240), (12, 2334970), (15, 1867976), (20, 1400982), (22, 1273620), (24, 1167485), (30, 933988), (33, 849080), (40, 700491), (44, 636810), (55, 509448), (60, 466994), (66, 424540), (88, 318405), (110, 254724), (120, 233497), (132, 212270), (165, 169816), (220, 127362), (264, 106135), (330, 84908), (440, 63681), (660, 42454), (1320, 21227)]