80791990

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{25013}}^1$

素因数の和:25056

約数の個数: 32

約数和(自身を含む): 162090720

約数和(自身を除く): 81298730

約数列:

[1, 2, 5, 10, 17, 19, 34, 38, 85, 95, 170, 190, 323, 646, 1615, 3230, 25013, 50026, 125065, 250130, 425221, 475247, 850442, 950494, 2126105, 2376235, 4252210, 4752470, 8079199, 16158398, 40395995, 80791990]

約数ペア:

[(1, 80791990), (2, 40395995), (5, 16158398), (10, 8079199), (17, 4752470), (19, 4252210), (34, 2376235), (38, 2126105), (85, 950494), (95, 850442), (170, 475247), (190, 425221), (323, 250130), (646, 125065), (1615, 50026), (3230, 25013)]