81236400

素因数分解:

$2^4\times 3^1\times 5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{509}}^1$

素因数の和:556

約数の個数: 240

約数和(自身を含む): 313670400

約数和(自身を除く): 232434000

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 19, 20, 21, 24, 25, 28, 30, 35, 38, 40, 42, 48, 50, 56, 57, 60, 70, 75, 76, 80, 84, 95, 100, 105, 112, 114, 120, 133, 140, 150, 152, 168, 175, 190, 200, 210, 228, 240, 266, 280, 285, 300, 304, 336, 350, 380, 399, 400, 420, 456, 475, 509, 525, 532, 560, 570, 600, 665, 700, 760, 798, 840, 912, 950, 1018, 1050, 1064, 1140, 1200, 1330, 1400, 1425, 1520, 1527, 1596, 1680, 1900, 1995, 2036, 2100, 2128, 2280, 2545, 2660, 2800, 2850, 3054, 3192, 3325, 3563, 3800, 3990, 4072, 4200, 4560, 5090, 5320, 5700, 6108, 6384, 6650, 7126, 7600, 7635, 7980, 8144, 8400, 9671, 9975, 10180, 10640, 10689, 11400, 12216, 12725, 13300, 14252, 15270, 15960, 17815, 19342, 19950, 20360, 21378, 22800, 24432, 25450, 26600, 28504, 29013, 30540, 31920, 35630, 38175, 38684, 39900, 40720, 42756, 48355, 50900, 53200, 53445, 57008, 58026, 61080, 67697, 71260, 76350, 77368, 79800, 85512, 89075, 96710, 101800, 106890, 116052, 122160, 135394, 142520, 145065, 152700, 154736, 159600, 171024, 178150, 193420, 203091, 203600, 213780, 232104, 241775, 267225, 270788, 285040, 290130, 305400, 338485, 356300, 386840, 406182, 427560, 464208, 483550, 534450, 541576, 580260, 610800, 676970, 712600, 725325, 773680, 812364, 855120, 967100, 1015455, 1068900, 1083152, 1160520, 1353940, 1425200, 1450650, 1624728, 1692425, 1934200, 2030910, 2137800, 2321040, 2707880, 2901300, 3249456, 3384850, 3868400, 4061820, 4275600, 5077275, 5415760, 5802600, 6769700, 8123640, 10154550, 11605200, 13539400, 16247280, 20309100, 27078800, 40618200, 81236400]

約数ペア:

[(1, 81236400), (2, 40618200), (3, 27078800), (4, 20309100), (5, 16247280), (6, 13539400), (7, 11605200), (8, 10154550), (10, 8123640), (12, 6769700), (14, 5802600), (15, 5415760), (16, 5077275), (19, 4275600), (20, 4061820), (21, 3868400), (24, 3384850), (25, 3249456), (28, 2901300), (30, 2707880), (35, 2321040), (38, 2137800), (40, 2030910), (42, 1934200), (48, 1692425), (50, 1624728), (56, 1450650), (57, 1425200), (60, 1353940), (70, 1160520), (75, 1083152), (76, 1068900), (80, 1015455), (84, 967100), (95, 855120), (100, 812364), (105, 773680), (112, 725325), (114, 712600), (120, 676970), (133, 610800), (140, 580260), (150, 541576), (152, 534450), (168, 483550), (175, 464208), (190, 427560), (200, 406182), (210, 386840), (228, 356300), (240, 338485), (266, 305400), (280, 290130), (285, 285040), (300, 270788), (304, 267225), (336, 241775), (350, 232104), (380, 213780), (399, 203600), (400, 203091), (420, 193420), (456, 178150), (475, 171024), (509, 159600), (525, 154736), (532, 152700), (560, 145065), (570, 142520), (600, 135394), (665, 122160), (700, 116052), (760, 106890), (798, 101800), (840, 96710), (912, 89075), (950, 85512), (1018, 79800), (1050, 77368), (1064, 76350), (1140, 71260), (1200, 67697), (1330, 61080), (1400, 58026), (1425, 57008), (1520, 53445), (1527, 53200), (1596, 50900), (1680, 48355), (1900, 42756), (1995, 40720), (2036, 39900), (2100, 38684), (2128, 38175), (2280, 35630), (2545, 31920), (2660, 30540), (2800, 29013), (2850, 28504), (3054, 26600), (3192, 25450), (3325, 24432), (3563, 22800), (3800, 21378), (3990, 20360), (4072, 19950), (4200, 19342), (4560, 17815), (5090, 15960), (5320, 15270), (5700, 14252), (6108, 13300), (6384, 12725), (6650, 12216), (7126, 11400), (7600, 10689), (7635, 10640), (7980, 10180), (8144, 9975), (8400, 9671)]