280215040

素因数分解:

$2^9\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{823}}^1$

素因数の和:872

約数の個数: 160

約数和(自身を含む): 809233920

約数和(自身を除く): 529018880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 32, 35, 38, 40, 56, 64, 70, 76, 80, 95, 112, 128, 133, 140, 152, 160, 190, 224, 256, 266, 280, 304, 320, 380, 448, 512, 532, 560, 608, 640, 665, 760, 823, 896, 1064, 1120, 1216, 1280, 1330, 1520, 1646, 1792, 2128, 2240, 2432, 2560, 2660, 3040, 3292, 3584, 4115, 4256, 4480, 4864, 5320, 5761, 6080, 6584, 8230, 8512, 8960, 9728, 10640, 11522, 12160, 13168, 15637, 16460, 17024, 17920, 21280, 23044, 24320, 26336, 28805, 31274, 32920, 34048, 42560, 46088, 48640, 52672, 57610, 62548, 65840, 68096, 78185, 85120, 92176, 105344, 109459, 115220, 125096, 131680, 156370, 170240, 184352, 210688, 218918, 230440, 250192, 263360, 312740, 340480, 368704, 421376, 437836, 460880, 500384, 526720, 547295, 625480, 737408, 875672, 921760, 1000768, 1053440, 1094590, 1250960, 1474816, 1751344, 1843520, 2001536, 2106880, 2189180, 2501920, 2949632, 3502688, 3687040, 4003072, 4378360, 5003840, 7005376, 7374080, 8006144, 8756720, 10007680, 14010752, 14748160, 17513440, 20015360, 28021504, 35026880, 40030720, 56043008, 70053760, 140107520, 280215040]

約数ペア:

[(1, 280215040), (2, 140107520), (4, 70053760), (5, 56043008), (7, 40030720), (8, 35026880), (10, 28021504), (14, 20015360), (16, 17513440), (19, 14748160), (20, 14010752), (28, 10007680), (32, 8756720), (35, 8006144), (38, 7374080), (40, 7005376), (56, 5003840), (64, 4378360), (70, 4003072), (76, 3687040), (80, 3502688), (95, 2949632), (112, 2501920), (128, 2189180), (133, 2106880), (140, 2001536), (152, 1843520), (160, 1751344), (190, 1474816), (224, 1250960), (256, 1094590), (266, 1053440), (280, 1000768), (304, 921760), (320, 875672), (380, 737408), (448, 625480), (512, 547295), (532, 526720), (560, 500384), (608, 460880), (640, 437836), (665, 421376), (760, 368704), (823, 340480), (896, 312740), (1064, 263360), (1120, 250192), (1216, 230440), (1280, 218918), (1330, 210688), (1520, 184352), (1646, 170240), (1792, 156370), (2128, 131680), (2240, 125096), (2432, 115220), (2560, 109459), (2660, 105344), (3040, 92176), (3292, 85120), (3584, 78185), (4115, 68096), (4256, 65840), (4480, 62548), (4864, 57610), (5320, 52672), (5761, 48640), (6080, 46088), (6584, 42560), (8230, 34048), (8512, 32920), (8960, 31274), (9728, 28805), (10640, 26336), (11522, 24320), (12160, 23044), (13168, 21280), (15637, 17920), (16460, 17024)]