81124560

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{10243}}^1$

素因数の和:10273

約数の個数: 120

約数和(自身を含む): 297239904

約数和(自身を除く): 216115344

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 30, 33, 36, 40, 44, 45, 48, 55, 60, 66, 72, 80, 88, 90, 99, 110, 120, 132, 144, 165, 176, 180, 198, 220, 240, 264, 330, 360, 396, 440, 495, 528, 660, 720, 792, 880, 990, 1320, 1584, 1980, 2640, 3960, 7920, 10243, 20486, 30729, 40972, 51215, 61458, 81944, 92187, 102430, 112673, 122916, 153645, 163888, 184374, 204860, 225346, 245832, 307290, 338019, 368748, 409720, 450692, 460935, 491664, 563365, 614580, 676038, 737496, 819440, 901384, 921870, 1014057, 1126730, 1229160, 1352076, 1474992, 1690095, 1802768, 1843740, 2028114, 2253460, 2458320, 2704152, 3380190, 3687480, 4056228, 4506920, 5070285, 5408304, 6760380, 7374960, 8112456, 9013840, 10140570, 13520760, 16224912, 20281140, 27041520, 40562280, 81124560]

約数ペア:

[(1, 81124560), (2, 40562280), (3, 27041520), (4, 20281140), (5, 16224912), (6, 13520760), (8, 10140570), (9, 9013840), (10, 8112456), (11, 7374960), (12, 6760380), (15, 5408304), (16, 5070285), (18, 4506920), (20, 4056228), (22, 3687480), (24, 3380190), (30, 2704152), (33, 2458320), (36, 2253460), (40, 2028114), (44, 1843740), (45, 1802768), (48, 1690095), (55, 1474992), (60, 1352076), (66, 1229160), (72, 1126730), (80, 1014057), (88, 921870), (90, 901384), (99, 819440), (110, 737496), (120, 676038), (132, 614580), (144, 563365), (165, 491664), (176, 460935), (180, 450692), (198, 409720), (220, 368748), (240, 338019), (264, 307290), (330, 245832), (360, 225346), (396, 204860), (440, 184374), (495, 163888), (528, 153645), (660, 122916), (720, 112673), (792, 102430), (880, 92187), (990, 81944), (1320, 61458), (1584, 51215), (1980, 40972), (2640, 30729), (3960, 20486), (7920, 10243)]