40898560

素因数分解:

$2^{12}\times 5^1\times {\mathrm{1997}}^1$

素因数の和:2026

約数の個数: 52

約数和(自身を含む): 98193708

約数和(自身を除く): 57295148

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 1997, 2048, 2560, 3994, 4096, 5120, 7988, 9985, 10240, 15976, 19970, 20480, 31952, 39940, 63904, 79880, 127808, 159760, 255616, 319520, 511232, 639040, 1022464, 1278080, 2044928, 2556160, 4089856, 5112320, 8179712, 10224640, 20449280, 40898560]

約数ペア:

[(1, 40898560), (2, 20449280), (4, 10224640), (5, 8179712), (8, 5112320), (10, 4089856), (16, 2556160), (20, 2044928), (32, 1278080), (40, 1022464), (64, 639040), (80, 511232), (128, 319520), (160, 255616), (256, 159760), (320, 127808), (512, 79880), (640, 63904), (1024, 39940), (1280, 31952), (1997, 20480), (2048, 19970), (2560, 15976), (3994, 10240), (4096, 9985), (5120, 7988)]