390550400

素因数分解:

$2^7\times 5^2\times {\mathrm{31}}^2\times {\mathrm{127}}^1$

素因数の和:213

約数の個数: 144

約数和(自身を含む): 1004757120

約数和(自身を除く): 614206720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 32, 40, 50, 62, 64, 80, 100, 124, 127, 128, 155, 160, 200, 248, 254, 310, 320, 400, 496, 508, 620, 635, 640, 775, 800, 961, 992, 1016, 1240, 1270, 1550, 1600, 1922, 1984, 2032, 2480, 2540, 3100, 3175, 3200, 3844, 3937, 3968, 4064, 4805, 4960, 5080, 6200, 6350, 7688, 7874, 8128, 9610, 9920, 10160, 12400, 12700, 15376, 15748, 16256, 19220, 19685, 19840, 20320, 24025, 24800, 25400, 30752, 31496, 38440, 39370, 40640, 48050, 49600, 50800, 61504, 62992, 76880, 78740, 81280, 96100, 98425, 99200, 101600, 122047, 123008, 125984, 153760, 157480, 192200, 196850, 203200, 244094, 251968, 307520, 314960, 384400, 393700, 406400, 488188, 503936, 610235, 615040, 629920, 768800, 787400, 976376, 1220470, 1259840, 1537600, 1574800, 1952752, 2440940, 2519680, 3051175, 3075200, 3149600, 3905504, 4881880, 6102350, 6299200, 7811008, 9763760, 12204700, 12598400, 15622016, 19527520, 24409400, 39055040, 48818800, 78110080, 97637600, 195275200, 390550400]

約数ペア:

[(1, 390550400), (2, 195275200), (4, 97637600), (5, 78110080), (8, 48818800), (10, 39055040), (16, 24409400), (20, 19527520), (25, 15622016), (31, 12598400), (32, 12204700), (40, 9763760), (50, 7811008), (62, 6299200), (64, 6102350), (80, 4881880), (100, 3905504), (124, 3149600), (127, 3075200), (128, 3051175), (155, 2519680), (160, 2440940), (200, 1952752), (248, 1574800), (254, 1537600), (310, 1259840), (320, 1220470), (400, 976376), (496, 787400), (508, 768800), (620, 629920), (635, 615040), (640, 610235), (775, 503936), (800, 488188), (961, 406400), (992, 393700), (1016, 384400), (1240, 314960), (1270, 307520), (1550, 251968), (1600, 244094), (1922, 203200), (1984, 196850), (2032, 192200), (2480, 157480), (2540, 153760), (3100, 125984), (3175, 123008), (3200, 122047), (3844, 101600), (3937, 99200), (3968, 98425), (4064, 96100), (4805, 81280), (4960, 78740), (5080, 76880), (6200, 62992), (6350, 61504), (7688, 50800), (7874, 49600), (8128, 48050), (9610, 40640), (9920, 39370), (10160, 38440), (12400, 31496), (12700, 30752), (15376, 25400), (15748, 24800), (16256, 24025), (19220, 20320), (19685, 19840)]