2159920

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1$

素因数の和:75

約数の個数: 120

約数和(自身を含む): 6361200

約数和(自身を除く): 4201280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 29, 35, 38, 40, 49, 56, 58, 70, 76, 80, 95, 98, 112, 116, 133, 140, 145, 152, 190, 196, 203, 232, 245, 266, 280, 290, 304, 380, 392, 406, 464, 490, 532, 551, 560, 580, 665, 760, 784, 812, 931, 980, 1015, 1064, 1102, 1160, 1330, 1421, 1520, 1624, 1862, 1960, 2030, 2128, 2204, 2320, 2660, 2755, 2842, 3248, 3724, 3857, 3920, 4060, 4408, 4655, 5320, 5510, 5684, 7105, 7448, 7714, 8120, 8816, 9310, 10640, 11020, 11368, 14210, 14896, 15428, 16240, 18620, 19285, 22040, 22736, 26999, 28420, 30856, 37240, 38570, 44080, 53998, 56840, 61712, 74480, 77140, 107996, 113680, 134995, 154280, 215992, 269990, 308560, 431984, 539980, 1079960, 2159920]

約数ペア:

[(1, 2159920), (2, 1079960), (4, 539980), (5, 431984), (7, 308560), (8, 269990), (10, 215992), (14, 154280), (16, 134995), (19, 113680), (20, 107996), (28, 77140), (29, 74480), (35, 61712), (38, 56840), (40, 53998), (49, 44080), (56, 38570), (58, 37240), (70, 30856), (76, 28420), (80, 26999), (95, 22736), (98, 22040), (112, 19285), (116, 18620), (133, 16240), (140, 15428), (145, 14896), (152, 14210), (190, 11368), (196, 11020), (203, 10640), (232, 9310), (245, 8816), (266, 8120), (280, 7714), (290, 7448), (304, 7105), (380, 5684), (392, 5510), (406, 5320), (464, 4655), (490, 4408), (532, 4060), (551, 3920), (560, 3857), (580, 3724), (665, 3248), (760, 2842), (784, 2755), (812, 2660), (931, 2320), (980, 2204), (1015, 2128), (1064, 2030), (1102, 1960), (1160, 1862), (1330, 1624), (1421, 1520)]