21155400

素因数分解:

$2^3\times 3^2\times 5^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1$

素因数の和:125

約数の個数: 288

約数和(自身を含む): 85887360

約数和(自身を除く): 64731960

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 23, 24, 25, 28, 30, 35, 36, 40, 42, 45, 46, 50, 56, 60, 63, 69, 70, 72, 73, 75, 84, 90, 92, 100, 105, 115, 120, 126, 138, 140, 146, 150, 161, 168, 175, 180, 184, 200, 207, 210, 219, 225, 230, 252, 276, 280, 292, 300, 315, 322, 345, 350, 360, 365, 414, 420, 438, 450, 460, 483, 504, 511, 525, 552, 575, 584, 600, 630, 644, 657, 690, 700, 730, 805, 828, 840, 876, 900, 920, 966, 1022, 1035, 1050, 1095, 1150, 1260, 1288, 1314, 1380, 1400, 1449, 1460, 1533, 1575, 1610, 1656, 1679, 1725, 1752, 1800, 1825, 1932, 2044, 2070, 2100, 2190, 2300, 2415, 2520, 2555, 2628, 2760, 2898, 2920, 3066, 3150, 3220, 3285, 3358, 3450, 3650, 3864, 4025, 4088, 4140, 4200, 4380, 4599, 4600, 4830, 5037, 5110, 5175, 5256, 5475, 5796, 6132, 6300, 6440, 6570, 6716, 6900, 7245, 7300, 7665, 8050, 8280, 8395, 8760, 9198, 9660, 10074, 10220, 10350, 10950, 11592, 11753, 12075, 12264, 12600, 12775, 13140, 13432, 13800, 14490, 14600, 15111, 15330, 16100, 16425, 16790, 18396, 19320, 20148, 20440, 20700, 21900, 22995, 23506, 24150, 25185, 25550, 26280, 28980, 30222, 30660, 32200, 32850, 33580, 35259, 36225, 36792, 38325, 40296, 41400, 41975, 43800, 45990, 47012, 48300, 50370, 51100, 57960, 58765, 60444, 61320, 65700, 67160, 70518, 72450, 75555, 76650, 83950, 91980, 94024, 96600, 100740, 102200, 105777, 114975, 117530, 120888, 125925, 131400, 141036, 144900, 151110, 153300, 167900, 176295, 183960, 201480, 211554, 229950, 235060, 251850, 282072, 289800, 293825, 302220, 306600, 335800, 352590, 377775, 423108, 459900, 470120, 503700, 528885, 587650, 604440, 705180, 755550, 846216, 881475, 919800, 1007400, 1057770, 1175300, 1410360, 1511100, 1762950, 2115540, 2350600, 2644425, 3022200, 3525900, 4231080, 5288850, 7051800, 10577700, 21155400]

約数ペア:

[(1, 21155400), (2, 10577700), (3, 7051800), (4, 5288850), (5, 4231080), (6, 3525900), (7, 3022200), (8, 2644425), (9, 2350600), (10, 2115540), (12, 1762950), (14, 1511100), (15, 1410360), (18, 1175300), (20, 1057770), (21, 1007400), (23, 919800), (24, 881475), (25, 846216), (28, 755550), (30, 705180), (35, 604440), (36, 587650), (40, 528885), (42, 503700), (45, 470120), (46, 459900), (50, 423108), (56, 377775), (60, 352590), (63, 335800), (69, 306600), (70, 302220), (72, 293825), (73, 289800), (75, 282072), (84, 251850), (90, 235060), (92, 229950), (100, 211554), (105, 201480), (115, 183960), (120, 176295), (126, 167900), (138, 153300), (140, 151110), (146, 144900), (150, 141036), (161, 131400), (168, 125925), (175, 120888), (180, 117530), (184, 114975), (200, 105777), (207, 102200), (210, 100740), (219, 96600), (225, 94024), (230, 91980), (252, 83950), (276, 76650), (280, 75555), (292, 72450), (300, 70518), (315, 67160), (322, 65700), (345, 61320), (350, 60444), (360, 58765), (365, 57960), (414, 51100), (420, 50370), (438, 48300), (450, 47012), (460, 45990), (483, 43800), (504, 41975), (511, 41400), (525, 40296), (552, 38325), (575, 36792), (584, 36225), (600, 35259), (630, 33580), (644, 32850), (657, 32200), (690, 30660), (700, 30222), (730, 28980), (805, 26280), (828, 25550), (840, 25185), (876, 24150), (900, 23506), (920, 22995), (966, 21900), (1022, 20700), (1035, 20440), (1050, 20148), (1095, 19320), (1150, 18396), (1260, 16790), (1288, 16425), (1314, 16100), (1380, 15330), (1400, 15111), (1449, 14600), (1460, 14490), (1533, 13800), (1575, 13432), (1610, 13140), (1656, 12775), (1679, 12600), (1725, 12264), (1752, 12075), (1800, 11753), (1825, 11592), (1932, 10950), (2044, 10350), (2070, 10220), (2100, 10074), (2190, 9660), (2300, 9198), (2415, 8760), (2520, 8395), (2555, 8280), (2628, 8050), (2760, 7665), (2898, 7300), (2920, 7245), (3066, 6900), (3150, 6716), (3220, 6570), (3285, 6440), (3358, 6300), (3450, 6132), (3650, 5796), (3864, 5475), (4025, 5256), (4088, 5175), (4140, 5110), (4200, 5037), (4380, 4830), (4599, 4600)]