128931840

素因数分解:

$2^{11}\times 3^2\times 5^1\times {\mathrm{1399}}^1$

素因数の和:1432

約数の個数: 144

約数和(自身を含む): 447174000

約数和(自身を除く): 318242160

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 64, 72, 80, 90, 96, 120, 128, 144, 160, 180, 192, 240, 256, 288, 320, 360, 384, 480, 512, 576, 640, 720, 768, 960, 1024, 1152, 1280, 1399, 1440, 1536, 1920, 2048, 2304, 2560, 2798, 2880, 3072, 3840, 4197, 4608, 5120, 5596, 5760, 6144, 6995, 7680, 8394, 9216, 10240, 11192, 11520, 12591, 13990, 15360, 16788, 18432, 20985, 22384, 23040, 25182, 27980, 30720, 33576, 41970, 44768, 46080, 50364, 55960, 62955, 67152, 83940, 89536, 92160, 100728, 111920, 125910, 134304, 167880, 179072, 201456, 223840, 251820, 268608, 335760, 358144, 402912, 447680, 503640, 537216, 671520, 716288, 805824, 895360, 1007280, 1074432, 1343040, 1432576, 1611648, 1790720, 2014560, 2148864, 2686080, 2865152, 3223296, 3581440, 4029120, 4297728, 5372160, 6446592, 7162880, 8058240, 8595456, 10744320, 12893184, 14325760, 16116480, 21488640, 25786368, 32232960, 42977280, 64465920, 128931840]

約数ペア:

[(1, 128931840), (2, 64465920), (3, 42977280), (4, 32232960), (5, 25786368), (6, 21488640), (8, 16116480), (9, 14325760), (10, 12893184), (12, 10744320), (15, 8595456), (16, 8058240), (18, 7162880), (20, 6446592), (24, 5372160), (30, 4297728), (32, 4029120), (36, 3581440), (40, 3223296), (45, 2865152), (48, 2686080), (60, 2148864), (64, 2014560), (72, 1790720), (80, 1611648), (90, 1432576), (96, 1343040), (120, 1074432), (128, 1007280), (144, 895360), (160, 805824), (180, 716288), (192, 671520), (240, 537216), (256, 503640), (288, 447680), (320, 402912), (360, 358144), (384, 335760), (480, 268608), (512, 251820), (576, 223840), (640, 201456), (720, 179072), (768, 167880), (960, 134304), (1024, 125910), (1152, 111920), (1280, 100728), (1399, 92160), (1440, 89536), (1536, 83940), (1920, 67152), (2048, 62955), (2304, 55960), (2560, 50364), (2798, 46080), (2880, 44768), (3072, 41970), (3840, 33576), (4197, 30720), (4608, 27980), (5120, 25182), (5596, 23040), (5760, 22384), (6144, 20985), (6995, 18432), (7680, 16788), (8394, 15360), (9216, 13990), (10240, 12591), (11192, 11520)]