661451674

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{997}}^1$

素因数の和:1127

約数の個数: 64

約数和(自身を含む): 1207180800

約数和(自身を除く): 545729126

約数列:

[1, 2, 13, 17, 19, 26, 34, 38, 79, 158, 221, 247, 323, 442, 494, 646, 997, 1027, 1343, 1501, 1994, 2054, 2686, 3002, 4199, 8398, 12961, 16949, 17459, 18943, 19513, 25517, 25922, 33898, 34918, 37886, 39026, 51034, 78763, 157526, 220337, 246259, 322031, 331721, 440674, 492518, 644062, 663442, 1023919, 1338971, 1496497, 2047838, 2677942, 2992994, 4186403, 8372806, 17406623, 19454461, 25440449, 34813246, 38908922, 50880898, 330725837, 661451674]

約数ペア:

[(1, 661451674), (2, 330725837), (13, 50880898), (17, 38908922), (19, 34813246), (26, 25440449), (34, 19454461), (38, 17406623), (79, 8372806), (158, 4186403), (221, 2992994), (247, 2677942), (323, 2047838), (442, 1496497), (494, 1338971), (646, 1023919), (997, 663442), (1027, 644062), (1343, 492518), (1501, 440674), (1994, 331721), (2054, 322031), (2686, 246259), (3002, 220337), (4199, 157526), (8398, 78763), (12961, 51034), (16949, 39026), (17459, 37886), (18943, 34918), (19513, 33898), (25517, 25922)]