639815536

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{149}}^1\times {\mathrm{15787}}^1$

素因数の和:15961

約数の個数: 40

約数和(自身を含む): 1321455600

約数和(自身を除く): 681640064

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 149, 272, 298, 596, 1192, 2384, 2533, 5066, 10132, 15787, 20264, 31574, 40528, 63148, 126296, 252592, 268379, 536758, 1073516, 2147032, 2352263, 4294064, 4704526, 9409052, 18818104, 37636208, 39988471, 79976942, 159953884, 319907768, 639815536]

約数ペア:

[(1, 639815536), (2, 319907768), (4, 159953884), (8, 79976942), (16, 39988471), (17, 37636208), (34, 18818104), (68, 9409052), (136, 4704526), (149, 4294064), (272, 2352263), (298, 2147032), (596, 1073516), (1192, 536758), (2384, 268379), (2533, 252592), (5066, 126296), (10132, 63148), (15787, 40528), (20264, 31574)]