208049920

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{12503}}^1$

素因数の和:12537

約数の個数: 72

約数和(自身を含む): 536721696

約数和(自身を除く): 328671776

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 256, 260, 320, 416, 520, 640, 832, 1040, 1280, 1664, 2080, 3328, 4160, 8320, 12503, 16640, 25006, 50012, 62515, 100024, 125030, 162539, 200048, 250060, 325078, 400096, 500120, 650156, 800192, 812695, 1000240, 1300312, 1600384, 1625390, 2000480, 2600624, 3200768, 3250780, 4000960, 5201248, 6501560, 8001920, 10402496, 13003120, 16003840, 20804992, 26006240, 41609984, 52012480, 104024960, 208049920]

約数ペア:

[(1, 208049920), (2, 104024960), (4, 52012480), (5, 41609984), (8, 26006240), (10, 20804992), (13, 16003840), (16, 13003120), (20, 10402496), (26, 8001920), (32, 6501560), (40, 5201248), (52, 4000960), (64, 3250780), (65, 3200768), (80, 2600624), (104, 2000480), (128, 1625390), (130, 1600384), (160, 1300312), (208, 1000240), (256, 812695), (260, 800192), (320, 650156), (416, 500120), (520, 400096), (640, 325078), (832, 250060), (1040, 200048), (1280, 162539), (1664, 125030), (2080, 100024), (3328, 62515), (4160, 50012), (8320, 25006), (12503, 16640)]