28280340

素因数分解:

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

素因数の和:81

約数の個数: 216

約数和(自身を含む): 101451168

約数和(自身を除く): 73170828

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 23, 27, 30, 33, 36, 44, 45, 46, 54, 55, 60, 66, 69, 81, 90, 92, 99, 108, 110, 115, 132, 135, 138, 162, 165, 180, 198, 207, 220, 230, 243, 253, 270, 276, 297, 324, 330, 345, 396, 405, 414, 460, 486, 495, 506, 529, 540, 594, 621, 660, 690, 759, 810, 828, 891, 972, 990, 1012, 1035, 1058, 1188, 1215, 1242, 1265, 1380, 1485, 1518, 1587, 1620, 1782, 1863, 1980, 2070, 2116, 2277, 2430, 2484, 2530, 2645, 2673, 2970, 3036, 3105, 3174, 3564, 3726, 3795, 4140, 4455, 4554, 4761, 4860, 5060, 5290, 5346, 5589, 5819, 5940, 6210, 6348, 6831, 7452, 7590, 7935, 8910, 9108, 9315, 9522, 10580, 10692, 11178, 11385, 11638, 12420, 13365, 13662, 14283, 15180, 15870, 17457, 17820, 18630, 19044, 20493, 22356, 22770, 23276, 23805, 26730, 27324, 27945, 28566, 29095, 31740, 34155, 34914, 37260, 40986, 42849, 45540, 47610, 52371, 53460, 55890, 57132, 58190, 61479, 68310, 69828, 71415, 81972, 85698, 87285, 95220, 102465, 104742, 111780, 116380, 122958, 128547, 136620, 142830, 157113, 171396, 174570, 204930, 209484, 214245, 245916, 257094, 261855, 285660, 307395, 314226, 349140, 409860, 428490, 471339, 514188, 523710, 614790, 628452, 642735, 785565, 856980, 942678, 1047420, 1229580, 1285470, 1414017, 1571130, 1885356, 2356695, 2570940, 2828034, 3142260, 4713390, 5656068, 7070085, 9426780, 14140170, 28280340]

約数ペア:

[(1, 28280340), (2, 14140170), (3, 9426780), (4, 7070085), (5, 5656068), (6, 4713390), (9, 3142260), (10, 2828034), (11, 2570940), (12, 2356695), (15, 1885356), (18, 1571130), (20, 1414017), (22, 1285470), (23, 1229580), (27, 1047420), (30, 942678), (33, 856980), (36, 785565), (44, 642735), (45, 628452), (46, 614790), (54, 523710), (55, 514188), (60, 471339), (66, 428490), (69, 409860), (81, 349140), (90, 314226), (92, 307395), (99, 285660), (108, 261855), (110, 257094), (115, 245916), (132, 214245), (135, 209484), (138, 204930), (162, 174570), (165, 171396), (180, 157113), (198, 142830), (207, 136620), (220, 128547), (230, 122958), (243, 116380), (253, 111780), (270, 104742), (276, 102465), (297, 95220), (324, 87285), (330, 85698), (345, 81972), (396, 71415), (405, 69828), (414, 68310), (460, 61479), (486, 58190), (495, 57132), (506, 55890), (529, 53460), (540, 52371), (594, 47610), (621, 45540), (660, 42849), (690, 40986), (759, 37260), (810, 34914), (828, 34155), (891, 31740), (972, 29095), (990, 28566), (1012, 27945), (1035, 27324), (1058, 26730), (1188, 23805), (1215, 23276), (1242, 22770), (1265, 22356), (1380, 20493), (1485, 19044), (1518, 18630), (1587, 17820), (1620, 17457), (1782, 15870), (1863, 15180), (1980, 14283), (2070, 13662), (2116, 13365), (2277, 12420), (2430, 11638), (2484, 11385), (2530, 11178), (2645, 10692), (2673, 10580), (2970, 9522), (3036, 9315), (3105, 9108), (3174, 8910), (3564, 7935), (3726, 7590), (3795, 7452), (4140, 6831), (4455, 6348), (4554, 6210), (4761, 5940), (4860, 5819), (5060, 5589), (5290, 5346)]