399701512

素因数分解:

$2^3\times 7^1\times {\mathrm{43}}^1\times {\mathrm{127}}^1\times {\mathrm{1307}}^1$

素因数の和:1490

約数の個数: 64

約数和(自身を含む): 883998720

約数和(自身を除く): 484297208

約数列:

[1, 2, 4, 7, 8, 14, 28, 43, 56, 86, 127, 172, 254, 301, 344, 508, 602, 889, 1016, 1204, 1307, 1778, 2408, 2614, 3556, 5228, 5461, 7112, 9149, 10456, 10922, 18298, 21844, 36596, 38227, 43688, 56201, 73192, 76454, 112402, 152908, 165989, 224804, 305816, 331978, 393407, 449608, 663956, 786814, 1161923, 1327912, 1573628, 2323846, 3147256, 4647692, 7137527, 9295384, 14275054, 28550108, 49962689, 57100216, 99925378, 199850756, 399701512]

約数ペア:

[(1, 399701512), (2, 199850756), (4, 99925378), (7, 57100216), (8, 49962689), (14, 28550108), (28, 14275054), (43, 9295384), (56, 7137527), (86, 4647692), (127, 3147256), (172, 2323846), (254, 1573628), (301, 1327912), (344, 1161923), (508, 786814), (602, 663956), (889, 449608), (1016, 393407), (1204, 331978), (1307, 305816), (1778, 224804), (2408, 165989), (2614, 152908), (3556, 112402), (5228, 76454), (5461, 73192), (7112, 56201), (9149, 43688), (10456, 38227), (10922, 36596), (18298, 21844)]