405488640

素因数分解:

$2^{10}\times 3^1\times 5^1\times {\mathrm{26399}}^1$

素因数の和:26427

約数の個数: 88

約数和(自身を含む): 1296979200

約数和(自身を除く): 891490560

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, 1536, 1920, 2560, 3072, 3840, 5120, 7680, 15360, 26399, 52798, 79197, 105596, 131995, 158394, 211192, 263990, 316788, 395985, 422384, 527980, 633576, 791970, 844768, 1055960, 1267152, 1583940, 1689536, 2111920, 2534304, 3167880, 3379072, 4223840, 5068608, 6335760, 6758144, 8447680, 10137216, 12671520, 13516288, 16895360, 20274432, 25343040, 27032576, 33790720, 40548864, 50686080, 67581440, 81097728, 101372160, 135162880, 202744320, 405488640]

約数ペア:

[(1, 405488640), (2, 202744320), (3, 135162880), (4, 101372160), (5, 81097728), (6, 67581440), (8, 50686080), (10, 40548864), (12, 33790720), (15, 27032576), (16, 25343040), (20, 20274432), (24, 16895360), (30, 13516288), (32, 12671520), (40, 10137216), (48, 8447680), (60, 6758144), (64, 6335760), (80, 5068608), (96, 4223840), (120, 3379072), (128, 3167880), (160, 2534304), (192, 2111920), (240, 1689536), (256, 1583940), (320, 1267152), (384, 1055960), (480, 844768), (512, 791970), (640, 633576), (768, 527980), (960, 422384), (1024, 395985), (1280, 316788), (1536, 263990), (1920, 211192), (2560, 158394), (3072, 131995), (3840, 105596), (5120, 79197), (7680, 52798), (15360, 26399)]