20194997984

素因数分解:

$2^5\times 7^2\times {\mathrm{73}}^1\times {\mathrm{176431}}^1$

素因数の和:176528

約数の個数: 72

約数和(自身を含む): 46883981088

約数和(自身を除く): 26688983104

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 73, 98, 112, 146, 196, 224, 292, 392, 511, 584, 784, 1022, 1168, 1568, 2044, 2336, 3577, 4088, 7154, 8176, 14308, 16352, 28616, 57232, 114464, 176431, 352862, 705724, 1235017, 1411448, 2470034, 2822896, 4940068, 5645792, 8645119, 9880136, 12879463, 17290238, 19760272, 25758926, 34580476, 39520544, 51517852, 69160952, 90156241, 103035704, 138321904, 180312482, 206071408, 276643808, 360624964, 412142816, 631093687, 721249928, 1262187374, 1442499856, 2524374748, 2884999712, 5048749496, 10097498992, 20194997984]

約数ペア:

[(1, 20194997984), (2, 10097498992), (4, 5048749496), (7, 2884999712), (8, 2524374748), (14, 1442499856), (16, 1262187374), (28, 721249928), (32, 631093687), (49, 412142816), (56, 360624964), (73, 276643808), (98, 206071408), (112, 180312482), (146, 138321904), (196, 103035704), (224, 90156241), (292, 69160952), (392, 51517852), (511, 39520544), (584, 34580476), (784, 25758926), (1022, 19760272), (1168, 17290238), (1568, 12879463), (2044, 9880136), (2336, 8645119), (3577, 5645792), (4088, 4940068), (7154, 2822896), (8176, 2470034), (14308, 1411448), (16352, 1235017), (28616, 705724), (57232, 352862), (114464, 176431)]