399131280

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{257}}^1\times {\mathrm{719}}^1$

素因数の和:998

約数の個数: 160

約数和(自身を含む): 1382054400

約数和(自身を除く): 982923120

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 90, 108, 120, 135, 144, 180, 216, 240, 257, 270, 360, 432, 514, 540, 719, 720, 771, 1028, 1080, 1285, 1438, 1542, 2056, 2157, 2160, 2313, 2570, 2876, 3084, 3595, 3855, 4112, 4314, 4626, 5140, 5752, 6168, 6471, 6939, 7190, 7710, 8628, 9252, 10280, 10785, 11504, 11565, 12336, 12942, 13878, 14380, 15420, 17256, 18504, 19413, 20560, 21570, 23130, 25884, 27756, 28760, 30840, 32355, 34512, 34695, 37008, 38826, 43140, 46260, 51768, 55512, 57520, 61680, 64710, 69390, 77652, 86280, 92520, 97065, 103536, 111024, 129420, 138780, 155304, 172560, 184783, 185040, 194130, 258840, 277560, 310608, 369566, 388260, 517680, 554349, 555120, 739132, 776520, 923915, 1108698, 1478264, 1553040, 1663047, 1847830, 2217396, 2771745, 2956528, 3326094, 3695660, 4434792, 4989141, 5543490, 6652188, 7391320, 8315235, 8869584, 9978282, 11086980, 13304376, 14782640, 16630470, 19956564, 22173960, 24945705, 26608752, 33260940, 39913128, 44347920, 49891410, 66521880, 79826256, 99782820, 133043760, 199565640, 399131280]

約数ペア:

[(1, 399131280), (2, 199565640), (3, 133043760), (4, 99782820), (5, 79826256), (6, 66521880), (8, 49891410), (9, 44347920), (10, 39913128), (12, 33260940), (15, 26608752), (16, 24945705), (18, 22173960), (20, 19956564), (24, 16630470), (27, 14782640), (30, 13304376), (36, 11086980), (40, 9978282), (45, 8869584), (48, 8315235), (54, 7391320), (60, 6652188), (72, 5543490), (80, 4989141), (90, 4434792), (108, 3695660), (120, 3326094), (135, 2956528), (144, 2771745), (180, 2217396), (216, 1847830), (240, 1663047), (257, 1553040), (270, 1478264), (360, 1108698), (432, 923915), (514, 776520), (540, 739132), (719, 555120), (720, 554349), (771, 517680), (1028, 388260), (1080, 369566), (1285, 310608), (1438, 277560), (1542, 258840), (2056, 194130), (2157, 185040), (2160, 184783), (2313, 172560), (2570, 155304), (2876, 138780), (3084, 129420), (3595, 111024), (3855, 103536), (4112, 97065), (4314, 92520), (4626, 86280), (5140, 77652), (5752, 69390), (6168, 64710), (6471, 61680), (6939, 57520), (7190, 55512), (7710, 51768), (8628, 46260), (9252, 43140), (10280, 38826), (10785, 37008), (11504, 34695), (11565, 34512), (12336, 32355), (12942, 30840), (13878, 28760), (14380, 27756), (15420, 25884), (17256, 23130), (18504, 21570), (19413, 20560)]