15742980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{7951}}^1$

素因数の和:7977

約数の個数: 72

約数和(自身を含む): 52101504

約数和(自身を除く): 36358524

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 132, 165, 180, 198, 220, 330, 396, 495, 660, 990, 1980, 7951, 15902, 23853, 31804, 39755, 47706, 71559, 79510, 87461, 95412, 119265, 143118, 159020, 174922, 238530, 262383, 286236, 349844, 357795, 437305, 477060, 524766, 715590, 787149, 874610, 1049532, 1311915, 1431180, 1574298, 1749220, 2623830, 3148596, 3935745, 5247660, 7871490, 15742980]

約数ペア:

[(1, 15742980), (2, 7871490), (3, 5247660), (4, 3935745), (5, 3148596), (6, 2623830), (9, 1749220), (10, 1574298), (11, 1431180), (12, 1311915), (15, 1049532), (18, 874610), (20, 787149), (22, 715590), (30, 524766), (33, 477060), (36, 437305), (44, 357795), (45, 349844), (55, 286236), (60, 262383), (66, 238530), (90, 174922), (99, 159020), (110, 143118), (132, 119265), (165, 95412), (180, 87461), (198, 79510), (220, 71559), (330, 47706), (396, 39755), (495, 31804), (660, 23853), (990, 15902), (1980, 7951)]