28900080

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1$

素因数の和:160

約数の個数: 240

約数和(自身を含む): 109680480

約数和(自身を除く): 80780400

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 30, 33, 36, 40, 41, 44, 45, 48, 55, 60, 66, 72, 80, 82, 88, 89, 90, 99, 110, 120, 123, 132, 144, 164, 165, 176, 178, 180, 198, 205, 220, 240, 246, 264, 267, 328, 330, 356, 360, 369, 396, 410, 440, 445, 451, 492, 495, 528, 534, 615, 656, 660, 712, 720, 738, 792, 801, 820, 880, 890, 902, 979, 984, 990, 1068, 1230, 1320, 1335, 1353, 1424, 1476, 1584, 1602, 1640, 1780, 1804, 1845, 1958, 1968, 1980, 2136, 2255, 2460, 2640, 2670, 2706, 2937, 2952, 3204, 3280, 3560, 3608, 3649, 3690, 3916, 3960, 4005, 4059, 4272, 4510, 4895, 4920, 5340, 5412, 5874, 5904, 6408, 6765, 7120, 7216, 7298, 7380, 7832, 7920, 8010, 8118, 8811, 9020, 9790, 9840, 10680, 10824, 10947, 11748, 12816, 13530, 14596, 14685, 14760, 15664, 16020, 16236, 17622, 18040, 18245, 19580, 20295, 21360, 21648, 21894, 23496, 27060, 29192, 29370, 29520, 32040, 32472, 32841, 35244, 36080, 36490, 39160, 40139, 40590, 43788, 44055, 46992, 54120, 54735, 58384, 58740, 64080, 64944, 65682, 70488, 72980, 78320, 80278, 81180, 87576, 88110, 108240, 109470, 117480, 120417, 131364, 140976, 145960, 160556, 162360, 164205, 175152, 176220, 200695, 218940, 234960, 240834, 262728, 291920, 321112, 324720, 328410, 352440, 361251, 401390, 437880, 481668, 525456, 602085, 642224, 656820, 704880, 722502, 802780, 875760, 963336, 1204170, 1313640, 1445004, 1605560, 1806255, 1926672, 2408340, 2627280, 2890008, 3211120, 3612510, 4816680, 5780016, 7225020, 9633360, 14450040, 28900080]

約数ペア:

[(1, 28900080), (2, 14450040), (3, 9633360), (4, 7225020), (5, 5780016), (6, 4816680), (8, 3612510), (9, 3211120), (10, 2890008), (11, 2627280), (12, 2408340), (15, 1926672), (16, 1806255), (18, 1605560), (20, 1445004), (22, 1313640), (24, 1204170), (30, 963336), (33, 875760), (36, 802780), (40, 722502), (41, 704880), (44, 656820), (45, 642224), (48, 602085), (55, 525456), (60, 481668), (66, 437880), (72, 401390), (80, 361251), (82, 352440), (88, 328410), (89, 324720), (90, 321112), (99, 291920), (110, 262728), (120, 240834), (123, 234960), (132, 218940), (144, 200695), (164, 176220), (165, 175152), (176, 164205), (178, 162360), (180, 160556), (198, 145960), (205, 140976), (220, 131364), (240, 120417), (246, 117480), (264, 109470), (267, 108240), (328, 88110), (330, 87576), (356, 81180), (360, 80278), (369, 78320), (396, 72980), (410, 70488), (440, 65682), (445, 64944), (451, 64080), (492, 58740), (495, 58384), (528, 54735), (534, 54120), (615, 46992), (656, 44055), (660, 43788), (712, 40590), (720, 40139), (738, 39160), (792, 36490), (801, 36080), (820, 35244), (880, 32841), (890, 32472), (902, 32040), (979, 29520), (984, 29370), (990, 29192), (1068, 27060), (1230, 23496), (1320, 21894), (1335, 21648), (1353, 21360), (1424, 20295), (1476, 19580), (1584, 18245), (1602, 18040), (1640, 17622), (1780, 16236), (1804, 16020), (1845, 15664), (1958, 14760), (1968, 14685), (1980, 14596), (2136, 13530), (2255, 12816), (2460, 11748), (2640, 10947), (2670, 10824), (2706, 10680), (2937, 9840), (2952, 9790), (3204, 9020), (3280, 8811), (3560, 8118), (3608, 8010), (3649, 7920), (3690, 7832), (3916, 7380), (3960, 7298), (4005, 7216), (4059, 7120), (4272, 6765), (4510, 6408), (4895, 5904), (4920, 5874), (5340, 5412)]