28048680

素因数分解:

$2^3\times 3^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{787}}^1$

素因数の和:821

約数の個数: 160

約数和(自身を含む): 102975840

約数和(自身を除く): 74927160

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 18, 20, 22, 24, 27, 30, 33, 36, 40, 44, 45, 54, 55, 60, 66, 72, 81, 88, 90, 99, 108, 110, 120, 132, 135, 162, 165, 180, 198, 216, 220, 264, 270, 297, 324, 330, 360, 396, 405, 440, 495, 540, 594, 648, 660, 787, 792, 810, 891, 990, 1080, 1188, 1320, 1485, 1574, 1620, 1782, 1980, 2361, 2376, 2970, 3148, 3240, 3564, 3935, 3960, 4455, 4722, 5940, 6296, 7083, 7128, 7870, 8657, 8910, 9444, 11805, 11880, 14166, 15740, 17314, 17820, 18888, 21249, 23610, 25971, 28332, 31480, 34628, 35415, 35640, 42498, 43285, 47220, 51942, 56664, 63747, 69256, 70830, 77913, 84996, 86570, 94440, 103884, 106245, 127494, 129855, 141660, 155826, 169992, 173140, 207768, 212490, 233739, 254988, 259710, 283320, 311652, 318735, 346280, 389565, 424980, 467478, 509976, 519420, 623304, 637470, 701217, 779130, 849960, 934956, 1038840, 1168695, 1274940, 1402434, 1558260, 1869912, 2337390, 2549880, 2804868, 3116520, 3506085, 4674780, 5609736, 7012170, 9349560, 14024340, 28048680]

約数ペア:

[(1, 28048680), (2, 14024340), (3, 9349560), (4, 7012170), (5, 5609736), (6, 4674780), (8, 3506085), (9, 3116520), (10, 2804868), (11, 2549880), (12, 2337390), (15, 1869912), (18, 1558260), (20, 1402434), (22, 1274940), (24, 1168695), (27, 1038840), (30, 934956), (33, 849960), (36, 779130), (40, 701217), (44, 637470), (45, 623304), (54, 519420), (55, 509976), (60, 467478), (66, 424980), (72, 389565), (81, 346280), (88, 318735), (90, 311652), (99, 283320), (108, 259710), (110, 254988), (120, 233739), (132, 212490), (135, 207768), (162, 173140), (165, 169992), (180, 155826), (198, 141660), (216, 129855), (220, 127494), (264, 106245), (270, 103884), (297, 94440), (324, 86570), (330, 84996), (360, 77913), (396, 70830), (405, 69256), (440, 63747), (495, 56664), (540, 51942), (594, 47220), (648, 43285), (660, 42498), (787, 35640), (792, 35415), (810, 34628), (891, 31480), (990, 28332), (1080, 25971), (1188, 23610), (1320, 21249), (1485, 18888), (1574, 17820), (1620, 17314), (1782, 15740), (1980, 14166), (2361, 11880), (2376, 11805), (2970, 9444), (3148, 8910), (3240, 8657), (3564, 7870), (3935, 7128), (3960, 7083), (4455, 6296), (4722, 5940)]