399720960

素因数分解:

$2^9\times 3^3\times 5^1\times {\mathrm{5783}}^1$

素因数の和:5815

約数の個数: 160

約数和(自身を含む): 1420087680

約数和(自身を除く): 1020366720

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 64, 72, 80, 90, 96, 108, 120, 128, 135, 144, 160, 180, 192, 216, 240, 256, 270, 288, 320, 360, 384, 432, 480, 512, 540, 576, 640, 720, 768, 864, 960, 1080, 1152, 1280, 1440, 1536, 1728, 1920, 2160, 2304, 2560, 2880, 3456, 3840, 4320, 4608, 5760, 5783, 6912, 7680, 8640, 11520, 11566, 13824, 17280, 17349, 23040, 23132, 28915, 34560, 34698, 46264, 52047, 57830, 69120, 69396, 86745, 92528, 104094, 115660, 138792, 156141, 173490, 185056, 208188, 231320, 260235, 277584, 312282, 346980, 370112, 416376, 462640, 520470, 555168, 624564, 693960, 740224, 780705, 832752, 925280, 1040940, 1110336, 1249128, 1387920, 1480448, 1561410, 1665504, 1850560, 2081880, 2220672, 2498256, 2775840, 2960896, 3122820, 3331008, 3701120, 4163760, 4441344, 4996512, 5551680, 6245640, 6662016, 7402240, 8327520, 8882688, 9993024, 11103360, 12491280, 13324032, 14804480, 16655040, 19986048, 22206720, 24982560, 26648064, 33310080, 39972096, 44413440, 49965120, 66620160, 79944192, 99930240, 133240320, 199860480, 399720960]

約数ペア:

[(1, 399720960), (2, 199860480), (3, 133240320), (4, 99930240), (5, 79944192), (6, 66620160), (8, 49965120), (9, 44413440), (10, 39972096), (12, 33310080), (15, 26648064), (16, 24982560), (18, 22206720), (20, 19986048), (24, 16655040), (27, 14804480), (30, 13324032), (32, 12491280), (36, 11103360), (40, 9993024), (45, 8882688), (48, 8327520), (54, 7402240), (60, 6662016), (64, 6245640), (72, 5551680), (80, 4996512), (90, 4441344), (96, 4163760), (108, 3701120), (120, 3331008), (128, 3122820), (135, 2960896), (144, 2775840), (160, 2498256), (180, 2220672), (192, 2081880), (216, 1850560), (240, 1665504), (256, 1561410), (270, 1480448), (288, 1387920), (320, 1249128), (360, 1110336), (384, 1040940), (432, 925280), (480, 832752), (512, 780705), (540, 740224), (576, 693960), (640, 624564), (720, 555168), (768, 520470), (864, 462640), (960, 416376), (1080, 370112), (1152, 346980), (1280, 312282), (1440, 277584), (1536, 260235), (1728, 231320), (1920, 208188), (2160, 185056), (2304, 173490), (2560, 156141), (2880, 138792), (3456, 115660), (3840, 104094), (4320, 92528), (4608, 86745), (5760, 69396), (5783, 69120), (6912, 57830), (7680, 52047), (8640, 46264), (11520, 34698), (11566, 34560), (13824, 28915), (17280, 23132), (17349, 23040)]