208331520

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{227}}^1\times {\mathrm{239}}^1$

素因数の和:490

約数の個数: 144

約数和(自身を含む): 671086080

約数和(自身を除く): 462754560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 227, 239, 240, 256, 320, 384, 454, 478, 480, 640, 681, 717, 768, 908, 956, 960, 1135, 1195, 1280, 1362, 1434, 1816, 1912, 1920, 2270, 2390, 2724, 2868, 3405, 3585, 3632, 3824, 3840, 4540, 4780, 5448, 5736, 6810, 7170, 7264, 7648, 9080, 9560, 10896, 11472, 13620, 14340, 14528, 15296, 18160, 19120, 21792, 22944, 27240, 28680, 29056, 30592, 36320, 38240, 43584, 45888, 54253, 54480, 57360, 58112, 61184, 72640, 76480, 87168, 91776, 108506, 108960, 114720, 145280, 152960, 162759, 174336, 183552, 217012, 217920, 229440, 271265, 290560, 305920, 325518, 434024, 435840, 458880, 542530, 651036, 813795, 868048, 871680, 917760, 1085060, 1302072, 1627590, 1736096, 2170120, 2604144, 3255180, 3472192, 4340240, 5208288, 6510360, 6944384, 8680480, 10416576, 13020720, 13888768, 17360960, 20833152, 26041440, 34721920, 41666304, 52082880, 69443840, 104165760, 208331520]

約数ペア:

[(1, 208331520), (2, 104165760), (3, 69443840), (4, 52082880), (5, 41666304), (6, 34721920), (8, 26041440), (10, 20833152), (12, 17360960), (15, 13888768), (16, 13020720), (20, 10416576), (24, 8680480), (30, 6944384), (32, 6510360), (40, 5208288), (48, 4340240), (60, 3472192), (64, 3255180), (80, 2604144), (96, 2170120), (120, 1736096), (128, 1627590), (160, 1302072), (192, 1085060), (227, 917760), (239, 871680), (240, 868048), (256, 813795), (320, 651036), (384, 542530), (454, 458880), (478, 435840), (480, 434024), (640, 325518), (681, 305920), (717, 290560), (768, 271265), (908, 229440), (956, 217920), (960, 217012), (1135, 183552), (1195, 174336), (1280, 162759), (1362, 152960), (1434, 145280), (1816, 114720), (1912, 108960), (1920, 108506), (2270, 91776), (2390, 87168), (2724, 76480), (2868, 72640), (3405, 61184), (3585, 58112), (3632, 57360), (3824, 54480), (3840, 54253), (4540, 45888), (4780, 43584), (5448, 38240), (5736, 36320), (6810, 30592), (7170, 29056), (7264, 28680), (7648, 27240), (9080, 22944), (9560, 21792), (10896, 19120), (11472, 18160), (13620, 15296), (14340, 14528)]