64991560

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{1723}}^1$

素因数の和:1798

約数の個数: 64

約数和(自身を含む): 156401280

約数和(自身を除く): 91409720

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 41, 46, 82, 92, 115, 164, 184, 205, 230, 328, 410, 460, 820, 920, 943, 1640, 1723, 1886, 3446, 3772, 4715, 6892, 7544, 8615, 9430, 13784, 17230, 18860, 34460, 37720, 39629, 68920, 70643, 79258, 141286, 158516, 198145, 282572, 317032, 353215, 396290, 565144, 706430, 792580, 1412860, 1585160, 1624789, 2825720, 3249578, 6499156, 8123945, 12998312, 16247890, 32495780, 64991560]

約数ペア:

[(1, 64991560), (2, 32495780), (4, 16247890), (5, 12998312), (8, 8123945), (10, 6499156), (20, 3249578), (23, 2825720), (40, 1624789), (41, 1585160), (46, 1412860), (82, 792580), (92, 706430), (115, 565144), (164, 396290), (184, 353215), (205, 317032), (230, 282572), (328, 198145), (410, 158516), (460, 141286), (820, 79258), (920, 70643), (943, 68920), (1640, 39629), (1723, 37720), (1886, 34460), (3446, 18860), (3772, 17230), (4715, 13784), (6892, 9430), (7544, 8615)]