420725600

素因数分解:

$2^5\times 5^2\times {\mathrm{41}}^1\times {\mathrm{101}}^1\times {\mathrm{127}}^1$

素因数の和:289

約数の個数: 144

約数和(自身を含む): 1070931456

約数和(自身を除く): 650205856

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 41, 50, 80, 82, 100, 101, 127, 160, 164, 200, 202, 205, 254, 328, 400, 404, 410, 505, 508, 635, 656, 800, 808, 820, 1010, 1016, 1025, 1270, 1312, 1616, 1640, 2020, 2032, 2050, 2525, 2540, 3175, 3232, 3280, 4040, 4064, 4100, 4141, 5050, 5080, 5207, 6350, 6560, 8080, 8200, 8282, 10100, 10160, 10414, 12700, 12827, 16160, 16400, 16564, 20200, 20320, 20705, 20828, 25400, 25654, 26035, 32800, 33128, 40400, 41410, 41656, 50800, 51308, 52070, 64135, 66256, 80800, 82820, 83312, 101600, 102616, 103525, 104140, 128270, 130175, 132512, 165640, 166624, 205232, 207050, 208280, 256540, 260350, 320675, 331280, 410464, 414100, 416560, 513080, 520700, 525907, 641350, 662560, 828200, 833120, 1026160, 1041400, 1051814, 1282700, 1656400, 2052320, 2082800, 2103628, 2565400, 2629535, 3312800, 4165600, 4207256, 5130800, 5259070, 8414512, 10261600, 10518140, 13147675, 16829024, 21036280, 26295350, 42072560, 52590700, 84145120, 105181400, 210362800, 420725600]

約数ペア:

[(1, 420725600), (2, 210362800), (4, 105181400), (5, 84145120), (8, 52590700), (10, 42072560), (16, 26295350), (20, 21036280), (25, 16829024), (32, 13147675), (40, 10518140), (41, 10261600), (50, 8414512), (80, 5259070), (82, 5130800), (100, 4207256), (101, 4165600), (127, 3312800), (160, 2629535), (164, 2565400), (200, 2103628), (202, 2082800), (205, 2052320), (254, 1656400), (328, 1282700), (400, 1051814), (404, 1041400), (410, 1026160), (505, 833120), (508, 828200), (635, 662560), (656, 641350), (800, 525907), (808, 520700), (820, 513080), (1010, 416560), (1016, 414100), (1025, 410464), (1270, 331280), (1312, 320675), (1616, 260350), (1640, 256540), (2020, 208280), (2032, 207050), (2050, 205232), (2525, 166624), (2540, 165640), (3175, 132512), (3232, 130175), (3280, 128270), (4040, 104140), (4064, 103525), (4100, 102616), (4141, 101600), (5050, 83312), (5080, 82820), (5207, 80800), (6350, 66256), (6560, 64135), (8080, 52070), (8200, 51308), (8282, 50800), (10100, 41656), (10160, 41410), (10414, 40400), (12700, 33128), (12827, 32800), (16160, 26035), (16400, 25654), (16564, 25400), (20200, 20828), (20320, 20705)]