31317680

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{13499}}^1$

素因数の和:13541

約数の個数: 40

約数和(自身を含む): 75330000

約数和(自身を除く): 44012320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 80, 116, 145, 232, 290, 464, 580, 1160, 2320, 13499, 26998, 53996, 67495, 107992, 134990, 215984, 269980, 391471, 539960, 782942, 1079920, 1565884, 1957355, 3131768, 3914710, 6263536, 7829420, 15658840, 31317680]

約数ペア:

[(1, 31317680), (2, 15658840), (4, 7829420), (5, 6263536), (8, 3914710), (10, 3131768), (16, 1957355), (20, 1565884), (29, 1079920), (40, 782942), (58, 539960), (80, 391471), (116, 269980), (145, 215984), (232, 134990), (290, 107992), (464, 67495), (580, 53996), (1160, 26998), (2320, 13499)]