21488640

素因数分解:

$2^{10}\times 3^1\times 5^1\times {\mathrm{1399}}^1$

素因数の和:1427

約数の個数: 88

約数和(自身を含む): 68779200

約数和(自身を除く): 47290560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 256, 320, 384, 480, 512, 640, 768, 960, 1024, 1280, 1399, 1536, 1920, 2560, 2798, 3072, 3840, 4197, 5120, 5596, 6995, 7680, 8394, 11192, 13990, 15360, 16788, 20985, 22384, 27980, 33576, 41970, 44768, 55960, 67152, 83940, 89536, 111920, 134304, 167880, 179072, 223840, 268608, 335760, 358144, 447680, 537216, 671520, 716288, 895360, 1074432, 1343040, 1432576, 1790720, 2148864, 2686080, 3581440, 4297728, 5372160, 7162880, 10744320, 21488640]

約数ペア:

[(1, 21488640), (2, 10744320), (3, 7162880), (4, 5372160), (5, 4297728), (6, 3581440), (8, 2686080), (10, 2148864), (12, 1790720), (15, 1432576), (16, 1343040), (20, 1074432), (24, 895360), (30, 716288), (32, 671520), (40, 537216), (48, 447680), (60, 358144), (64, 335760), (80, 268608), (96, 223840), (120, 179072), (128, 167880), (160, 134304), (192, 111920), (240, 89536), (256, 83940), (320, 67152), (384, 55960), (480, 44768), (512, 41970), (640, 33576), (768, 27980), (960, 22384), (1024, 20985), (1280, 16788), (1399, 15360), (1536, 13990), (1920, 11192), (2560, 8394), (2798, 7680), (3072, 6995), (3840, 5596), (4197, 5120)]