81975120

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{17977}}^1$

素因数の和:18012

約数の個数: 80

約数和(自身を含む): 267512640

約数和(自身を除く): 185537520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 30, 38, 40, 48, 57, 60, 76, 80, 95, 114, 120, 152, 190, 228, 240, 285, 304, 380, 456, 570, 760, 912, 1140, 1520, 2280, 4560, 17977, 35954, 53931, 71908, 89885, 107862, 143816, 179770, 215724, 269655, 287632, 341563, 359540, 431448, 539310, 683126, 719080, 862896, 1024689, 1078620, 1366252, 1438160, 1707815, 2049378, 2157240, 2732504, 3415630, 4098756, 4314480, 5123445, 5465008, 6831260, 8197512, 10246890, 13662520, 16395024, 20493780, 27325040, 40987560, 81975120]

約数ペア:

[(1, 81975120), (2, 40987560), (3, 27325040), (4, 20493780), (5, 16395024), (6, 13662520), (8, 10246890), (10, 8197512), (12, 6831260), (15, 5465008), (16, 5123445), (19, 4314480), (20, 4098756), (24, 3415630), (30, 2732504), (38, 2157240), (40, 2049378), (48, 1707815), (57, 1438160), (60, 1366252), (76, 1078620), (80, 1024689), (95, 862896), (114, 719080), (120, 683126), (152, 539310), (190, 431448), (228, 359540), (240, 341563), (285, 287632), (304, 269655), (380, 215724), (456, 179770), (570, 143816), (760, 107862), (912, 89885), (1140, 71908), (1520, 53931), (2280, 35954), (4560, 17977)]