28056780

素因数分解:

$2^2\times 3^5\times 5^1\times {\mathrm{23}}^1\times {\mathrm{251}}^1$

素因数の和:298

約数の個数: 144

約数和(自身を含む): 92461824

約数和(自身を除く): 64405044

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 27, 30, 36, 45, 46, 54, 60, 69, 81, 90, 92, 108, 115, 135, 138, 162, 180, 207, 230, 243, 251, 270, 276, 324, 345, 405, 414, 460, 486, 502, 540, 621, 690, 753, 810, 828, 972, 1004, 1035, 1215, 1242, 1255, 1380, 1506, 1620, 1863, 2070, 2259, 2430, 2484, 2510, 3012, 3105, 3726, 3765, 4140, 4518, 4860, 5020, 5589, 5773, 6210, 6777, 7452, 7530, 9036, 9315, 11178, 11295, 11546, 12420, 13554, 15060, 17319, 18630, 20331, 22356, 22590, 23092, 27108, 27945, 28865, 33885, 34638, 37260, 40662, 45180, 51957, 55890, 57730, 60993, 67770, 69276, 81324, 86595, 101655, 103914, 111780, 115460, 121986, 135540, 155871, 173190, 203310, 207828, 243972, 259785, 304965, 311742, 346380, 406620, 467613, 519570, 609930, 623484, 779355, 935226, 1039140, 1219860, 1402839, 1558710, 1870452, 2338065, 2805678, 3117420, 4676130, 5611356, 7014195, 9352260, 14028390, 28056780]

約数ペア:

[(1, 28056780), (2, 14028390), (3, 9352260), (4, 7014195), (5, 5611356), (6, 4676130), (9, 3117420), (10, 2805678), (12, 2338065), (15, 1870452), (18, 1558710), (20, 1402839), (23, 1219860), (27, 1039140), (30, 935226), (36, 779355), (45, 623484), (46, 609930), (54, 519570), (60, 467613), (69, 406620), (81, 346380), (90, 311742), (92, 304965), (108, 259785), (115, 243972), (135, 207828), (138, 203310), (162, 173190), (180, 155871), (207, 135540), (230, 121986), (243, 115460), (251, 111780), (270, 103914), (276, 101655), (324, 86595), (345, 81324), (405, 69276), (414, 67770), (460, 60993), (486, 57730), (502, 55890), (540, 51957), (621, 45180), (690, 40662), (753, 37260), (810, 34638), (828, 33885), (972, 28865), (1004, 27945), (1035, 27108), (1215, 23092), (1242, 22590), (1255, 22356), (1380, 20331), (1506, 18630), (1620, 17319), (1863, 15060), (2070, 13554), (2259, 12420), (2430, 11546), (2484, 11295), (2510, 11178), (3012, 9315), (3105, 9036), (3726, 7530), (3765, 7452), (4140, 6777), (4518, 6210), (4860, 5773), (5020, 5589)]