28281120

素因数分解:

$2^5\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{443}}^1$

素因数の和:487

約数の個数: 192

約数和(自身を含む): 107412480

約数和(自身を除く): 79131360

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 19, 20, 21, 24, 28, 30, 32, 35, 38, 40, 42, 48, 56, 57, 60, 70, 76, 80, 84, 95, 96, 105, 112, 114, 120, 133, 140, 152, 160, 168, 190, 210, 224, 228, 240, 266, 280, 285, 304, 336, 380, 399, 420, 443, 456, 480, 532, 560, 570, 608, 665, 672, 760, 798, 840, 886, 912, 1064, 1120, 1140, 1329, 1330, 1520, 1596, 1680, 1772, 1824, 1995, 2128, 2215, 2280, 2658, 2660, 3040, 3101, 3192, 3360, 3544, 3990, 4256, 4430, 4560, 5316, 5320, 6202, 6384, 6645, 7088, 7980, 8417, 8860, 9120, 9303, 10632, 10640, 12404, 12768, 13290, 14176, 15505, 15960, 16834, 17720, 18606, 21264, 21280, 24808, 25251, 26580, 31010, 31920, 33668, 35440, 37212, 42085, 42528, 46515, 49616, 50502, 53160, 58919, 62020, 63840, 67336, 70880, 74424, 84170, 93030, 99232, 101004, 106320, 117838, 124040, 126255, 134672, 148848, 168340, 176757, 186060, 202008, 212640, 235676, 248080, 252510, 269344, 294595, 297696, 336680, 353514, 372120, 404016, 471352, 496160, 505020, 589190, 673360, 707028, 744240, 808032, 883785, 942704, 1010040, 1178380, 1346720, 1414056, 1488480, 1767570, 1885408, 2020080, 2356760, 2828112, 3535140, 4040160, 4713520, 5656224, 7070280, 9427040, 14140560, 28281120]

約数ペア:

[(1, 28281120), (2, 14140560), (3, 9427040), (4, 7070280), (5, 5656224), (6, 4713520), (7, 4040160), (8, 3535140), (10, 2828112), (12, 2356760), (14, 2020080), (15, 1885408), (16, 1767570), (19, 1488480), (20, 1414056), (21, 1346720), (24, 1178380), (28, 1010040), (30, 942704), (32, 883785), (35, 808032), (38, 744240), (40, 707028), (42, 673360), (48, 589190), (56, 505020), (57, 496160), (60, 471352), (70, 404016), (76, 372120), (80, 353514), (84, 336680), (95, 297696), (96, 294595), (105, 269344), (112, 252510), (114, 248080), (120, 235676), (133, 212640), (140, 202008), (152, 186060), (160, 176757), (168, 168340), (190, 148848), (210, 134672), (224, 126255), (228, 124040), (240, 117838), (266, 106320), (280, 101004), (285, 99232), (304, 93030), (336, 84170), (380, 74424), (399, 70880), (420, 67336), (443, 63840), (456, 62020), (480, 58919), (532, 53160), (560, 50502), (570, 49616), (608, 46515), (665, 42528), (672, 42085), (760, 37212), (798, 35440), (840, 33668), (886, 31920), (912, 31010), (1064, 26580), (1120, 25251), (1140, 24808), (1329, 21280), (1330, 21264), (1520, 18606), (1596, 17720), (1680, 16834), (1772, 15960), (1824, 15505), (1995, 14176), (2128, 13290), (2215, 12768), (2280, 12404), (2658, 10640), (2660, 10632), (3040, 9303), (3101, 9120), (3192, 8860), (3360, 8417), (3544, 7980), (3990, 7088), (4256, 6645), (4430, 6384), (4560, 6202), (5316, 5320)]