18853560

素因数分解:

$2^3\times 3^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^2$

素因数の和:80

約数の個数: 240

約数和(自身を含む): 72266040

約数和(自身を除く): 53412480

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 18, 20, 22, 23, 24, 27, 30, 33, 36, 40, 44, 45, 46, 54, 55, 60, 66, 69, 72, 81, 88, 90, 92, 99, 108, 110, 115, 120, 132, 135, 138, 162, 165, 180, 184, 198, 207, 216, 220, 230, 253, 264, 270, 276, 297, 324, 330, 345, 360, 396, 405, 414, 440, 460, 495, 506, 529, 540, 552, 594, 621, 648, 660, 690, 759, 792, 810, 828, 891, 920, 990, 1012, 1035, 1058, 1080, 1188, 1242, 1265, 1320, 1380, 1485, 1518, 1587, 1620, 1656, 1782, 1863, 1980, 2024, 2070, 2116, 2277, 2376, 2484, 2530, 2645, 2760, 2970, 3036, 3105, 3174, 3240, 3564, 3726, 3795, 3960, 4140, 4232, 4455, 4554, 4761, 4968, 5060, 5290, 5819, 5940, 6072, 6210, 6348, 6831, 7128, 7452, 7590, 7935, 8280, 8910, 9108, 9315, 9522, 10120, 10580, 11385, 11638, 11880, 12420, 12696, 13662, 14283, 14904, 15180, 15870, 17457, 17820, 18216, 18630, 19044, 20493, 21160, 22770, 23276, 23805, 24840, 27324, 28566, 29095, 30360, 31740, 34155, 34914, 35640, 37260, 38088, 40986, 42849, 45540, 46552, 47610, 52371, 54648, 57132, 58190, 63480, 68310, 69828, 71415, 74520, 81972, 85698, 87285, 91080, 95220, 102465, 104742, 114264, 116380, 136620, 139656, 142830, 157113, 163944, 171396, 174570, 190440, 204930, 209484, 214245, 232760, 261855, 273240, 285660, 314226, 342792, 349140, 409860, 418968, 428490, 471339, 523710, 571320, 628452, 698280, 785565, 819720, 856980, 942678, 1047420, 1256904, 1571130, 1713960, 1885356, 2094840, 2356695, 3142260, 3770712, 4713390, 6284520, 9426780, 18853560]

約数ペア:

[(1, 18853560), (2, 9426780), (3, 6284520), (4, 4713390), (5, 3770712), (6, 3142260), (8, 2356695), (9, 2094840), (10, 1885356), (11, 1713960), (12, 1571130), (15, 1256904), (18, 1047420), (20, 942678), (22, 856980), (23, 819720), (24, 785565), (27, 698280), (30, 628452), (33, 571320), (36, 523710), (40, 471339), (44, 428490), (45, 418968), (46, 409860), (54, 349140), (55, 342792), (60, 314226), (66, 285660), (69, 273240), (72, 261855), (81, 232760), (88, 214245), (90, 209484), (92, 204930), (99, 190440), (108, 174570), (110, 171396), (115, 163944), (120, 157113), (132, 142830), (135, 139656), (138, 136620), (162, 116380), (165, 114264), (180, 104742), (184, 102465), (198, 95220), (207, 91080), (216, 87285), (220, 85698), (230, 81972), (253, 74520), (264, 71415), (270, 69828), (276, 68310), (297, 63480), (324, 58190), (330, 57132), (345, 54648), (360, 52371), (396, 47610), (405, 46552), (414, 45540), (440, 42849), (460, 40986), (495, 38088), (506, 37260), (529, 35640), (540, 34914), (552, 34155), (594, 31740), (621, 30360), (648, 29095), (660, 28566), (690, 27324), (759, 24840), (792, 23805), (810, 23276), (828, 22770), (891, 21160), (920, 20493), (990, 19044), (1012, 18630), (1035, 18216), (1058, 17820), (1080, 17457), (1188, 15870), (1242, 15180), (1265, 14904), (1320, 14283), (1380, 13662), (1485, 12696), (1518, 12420), (1587, 11880), (1620, 11638), (1656, 11385), (1782, 10580), (1863, 10120), (1980, 9522), (2024, 9315), (2070, 9108), (2116, 8910), (2277, 8280), (2376, 7935), (2484, 7590), (2530, 7452), (2645, 7128), (2760, 6831), (2970, 6348), (3036, 6210), (3105, 6072), (3174, 5940), (3240, 5819), (3564, 5290), (3726, 5060), (3795, 4968), (3960, 4761), (4140, 4554), (4232, 4455)]