138939520

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{149}}^1$

素因数の和:246

約数の個数: 128

約数和(自身を含む): 352512000

約数和(自身を除く): 213572480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 47, 62, 64, 80, 94, 124, 128, 149, 155, 160, 188, 235, 248, 298, 310, 320, 376, 470, 496, 596, 620, 640, 745, 752, 940, 992, 1192, 1240, 1457, 1490, 1504, 1880, 1984, 2384, 2480, 2914, 2980, 3008, 3760, 3968, 4619, 4768, 4960, 5828, 5960, 6016, 7003, 7285, 7520, 9238, 9536, 9920, 11656, 11920, 14006, 14570, 15040, 18476, 19072, 19840, 23095, 23312, 23840, 28012, 29140, 30080, 35015, 36952, 46190, 46624, 47680, 56024, 58280, 70030, 73904, 92380, 93248, 95360, 112048, 116560, 140060, 147808, 184760, 186496, 217093, 224096, 233120, 280120, 295616, 369520, 434186, 448192, 466240, 560240, 591232, 739040, 868372, 896384, 932480, 1085465, 1120480, 1478080, 1736744, 2170930, 2240960, 2956160, 3473488, 4341860, 4481920, 6946976, 8683720, 13893952, 17367440, 27787904, 34734880, 69469760, 138939520]

約数ペア:

[(1, 138939520), (2, 69469760), (4, 34734880), (5, 27787904), (8, 17367440), (10, 13893952), (16, 8683720), (20, 6946976), (31, 4481920), (32, 4341860), (40, 3473488), (47, 2956160), (62, 2240960), (64, 2170930), (80, 1736744), (94, 1478080), (124, 1120480), (128, 1085465), (149, 932480), (155, 896384), (160, 868372), (188, 739040), (235, 591232), (248, 560240), (298, 466240), (310, 448192), (320, 434186), (376, 369520), (470, 295616), (496, 280120), (596, 233120), (620, 224096), (640, 217093), (745, 186496), (752, 184760), (940, 147808), (992, 140060), (1192, 116560), (1240, 112048), (1457, 95360), (1490, 93248), (1504, 92380), (1880, 73904), (1984, 70030), (2384, 58280), (2480, 56024), (2914, 47680), (2980, 46624), (3008, 46190), (3760, 36952), (3968, 35015), (4619, 30080), (4768, 29140), (4960, 28012), (5828, 23840), (5960, 23312), (6016, 23095), (7003, 19840), (7285, 19072), (7520, 18476), (9238, 15040), (9536, 14570), (9920, 14006), (11656, 11920)]