28940800

素因数分解:

$2^9\times 5^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1$

素因数の和:71

約数の個数: 240

約数和(自身を含む): 91333440

約数和(自身を除く): 62392640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 19, 20, 25, 28, 32, 34, 35, 38, 40, 50, 56, 64, 68, 70, 76, 80, 85, 95, 100, 112, 119, 128, 133, 136, 140, 152, 160, 170, 175, 190, 200, 224, 238, 256, 266, 272, 280, 304, 320, 323, 340, 350, 380, 400, 425, 448, 475, 476, 512, 532, 544, 560, 595, 608, 640, 646, 665, 680, 700, 760, 800, 850, 896, 950, 952, 1064, 1088, 1120, 1190, 1216, 1280, 1292, 1330, 1360, 1400, 1520, 1600, 1615, 1700, 1792, 1900, 1904, 2128, 2176, 2240, 2261, 2380, 2432, 2560, 2584, 2660, 2720, 2800, 2975, 3040, 3200, 3230, 3325, 3400, 3584, 3800, 3808, 4256, 4352, 4480, 4522, 4760, 4864, 5168, 5320, 5440, 5600, 5950, 6080, 6400, 6460, 6650, 6800, 7600, 7616, 8075, 8512, 8704, 8960, 9044, 9520, 9728, 10336, 10640, 10880, 11200, 11305, 11900, 12160, 12800, 12920, 13300, 13600, 15200, 15232, 16150, 17024, 17920, 18088, 19040, 20672, 21280, 21760, 22400, 22610, 23800, 24320, 25840, 26600, 27200, 30400, 30464, 32300, 34048, 36176, 38080, 41344, 42560, 43520, 44800, 45220, 47600, 48640, 51680, 53200, 54400, 56525, 60800, 60928, 64600, 68096, 72352, 76160, 82688, 85120, 89600, 90440, 95200, 103360, 106400, 108800, 113050, 121600, 129200, 144704, 152320, 165376, 170240, 180880, 190400, 206720, 212800, 217600, 226100, 243200, 258400, 289408, 304640, 340480, 361760, 380800, 413440, 425600, 452200, 516800, 578816, 723520, 761600, 826880, 851200, 904400, 1033600, 1157632, 1447040, 1523200, 1702400, 1808800, 2067200, 2894080, 3617600, 4134400, 5788160, 7235200, 14470400, 28940800]

約数ペア:

[(1, 28940800), (2, 14470400), (4, 7235200), (5, 5788160), (7, 4134400), (8, 3617600), (10, 2894080), (14, 2067200), (16, 1808800), (17, 1702400), (19, 1523200), (20, 1447040), (25, 1157632), (28, 1033600), (32, 904400), (34, 851200), (35, 826880), (38, 761600), (40, 723520), (50, 578816), (56, 516800), (64, 452200), (68, 425600), (70, 413440), (76, 380800), (80, 361760), (85, 340480), (95, 304640), (100, 289408), (112, 258400), (119, 243200), (128, 226100), (133, 217600), (136, 212800), (140, 206720), (152, 190400), (160, 180880), (170, 170240), (175, 165376), (190, 152320), (200, 144704), (224, 129200), (238, 121600), (256, 113050), (266, 108800), (272, 106400), (280, 103360), (304, 95200), (320, 90440), (323, 89600), (340, 85120), (350, 82688), (380, 76160), (400, 72352), (425, 68096), (448, 64600), (475, 60928), (476, 60800), (512, 56525), (532, 54400), (544, 53200), (560, 51680), (595, 48640), (608, 47600), (640, 45220), (646, 44800), (665, 43520), (680, 42560), (700, 41344), (760, 38080), (800, 36176), (850, 34048), (896, 32300), (950, 30464), (952, 30400), (1064, 27200), (1088, 26600), (1120, 25840), (1190, 24320), (1216, 23800), (1280, 22610), (1292, 22400), (1330, 21760), (1360, 21280), (1400, 20672), (1520, 19040), (1600, 18088), (1615, 17920), (1700, 17024), (1792, 16150), (1900, 15232), (1904, 15200), (2128, 13600), (2176, 13300), (2240, 12920), (2261, 12800), (2380, 12160), (2432, 11900), (2560, 11305), (2584, 11200), (2660, 10880), (2720, 10640), (2800, 10336), (2975, 9728), (3040, 9520), (3200, 9044), (3230, 8960), (3325, 8704), (3400, 8512), (3584, 8075), (3800, 7616), (3808, 7600), (4256, 6800), (4352, 6650), (4480, 6460), (4522, 6400), (4760, 6080), (4864, 5950), (5168, 5600), (5320, 5440)]