399054720

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{10939}}^1$

素因数の和:10980

約数の個数: 128

約数和(自身を含む): 1339056000

約数和(自身を除く): 940001280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 30, 32, 38, 40, 48, 57, 60, 64, 76, 80, 95, 96, 114, 120, 128, 152, 160, 190, 192, 228, 240, 285, 304, 320, 380, 384, 456, 480, 570, 608, 640, 760, 912, 960, 1140, 1216, 1520, 1824, 1920, 2280, 2432, 3040, 3648, 4560, 6080, 7296, 9120, 10939, 12160, 18240, 21878, 32817, 36480, 43756, 54695, 65634, 87512, 109390, 131268, 164085, 175024, 207841, 218780, 262536, 328170, 350048, 415682, 437560, 525072, 623523, 656340, 700096, 831364, 875120, 1039205, 1050144, 1247046, 1312680, 1400192, 1662728, 1750240, 2078410, 2100288, 2494092, 2625360, 3117615, 3325456, 3500480, 4156820, 4200576, 4988184, 5250720, 6235230, 6650912, 7000960, 8313640, 9976368, 10501440, 12470460, 13301824, 16627280, 19952736, 21002880, 24940920, 26603648, 33254560, 39905472, 49881840, 66509120, 79810944, 99763680, 133018240, 199527360, 399054720]

約数ペア:

[(1, 399054720), (2, 199527360), (3, 133018240), (4, 99763680), (5, 79810944), (6, 66509120), (8, 49881840), (10, 39905472), (12, 33254560), (15, 26603648), (16, 24940920), (19, 21002880), (20, 19952736), (24, 16627280), (30, 13301824), (32, 12470460), (38, 10501440), (40, 9976368), (48, 8313640), (57, 7000960), (60, 6650912), (64, 6235230), (76, 5250720), (80, 4988184), (95, 4200576), (96, 4156820), (114, 3500480), (120, 3325456), (128, 3117615), (152, 2625360), (160, 2494092), (190, 2100288), (192, 2078410), (228, 1750240), (240, 1662728), (285, 1400192), (304, 1312680), (320, 1247046), (380, 1050144), (384, 1039205), (456, 875120), (480, 831364), (570, 700096), (608, 656340), (640, 623523), (760, 525072), (912, 437560), (960, 415682), (1140, 350048), (1216, 328170), (1520, 262536), (1824, 218780), (1920, 207841), (2280, 175024), (2432, 164085), (3040, 131268), (3648, 109390), (4560, 87512), (6080, 65634), (7296, 54695), (9120, 43756), (10939, 36480), (12160, 32817), (18240, 21878)]