64789720

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{95279}}^1$

素因数の和:95307

約数の個数: 32

約数和(自身を含む): 154353600

約数和(自身を除く): 89563880

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 95279, 190558, 381116, 476395, 762232, 952790, 1619743, 1905580, 3239486, 3811160, 6478972, 8098715, 12957944, 16197430, 32394860, 64789720]

約数ペア:

[(1, 64789720), (2, 32394860), (4, 16197430), (5, 12957944), (8, 8098715), (10, 6478972), (17, 3811160), (20, 3239486), (34, 1905580), (40, 1619743), (68, 952790), (85, 762232), (136, 476395), (170, 381116), (340, 190558), (680, 95279)]