28044120

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17977}}^1$

素因数の和:18004

約数の個数: 64

約数和(自身を含む): 90609120

約数和(自身を除く): 62565000

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 17977, 35954, 53931, 71908, 89885, 107862, 143816, 179770, 215724, 233701, 269655, 359540, 431448, 467402, 539310, 701103, 719080, 934804, 1078620, 1168505, 1402206, 1869608, 2157240, 2337010, 2804412, 3505515, 4674020, 5608824, 7011030, 9348040, 14022060, 28044120]

約数ペア:

[(1, 28044120), (2, 14022060), (3, 9348040), (4, 7011030), (5, 5608824), (6, 4674020), (8, 3505515), (10, 2804412), (12, 2337010), (13, 2157240), (15, 1869608), (20, 1402206), (24, 1168505), (26, 1078620), (30, 934804), (39, 719080), (40, 701103), (52, 539310), (60, 467402), (65, 431448), (78, 359540), (104, 269655), (120, 233701), (130, 215724), (156, 179770), (195, 143816), (260, 107862), (312, 89885), (390, 71908), (520, 53931), (780, 35954), (1560, 17977)]