991567232

素因数分解:

$2^7\times {\mathrm{127}}^1\times {\mathrm{181}}^1\times {\mathrm{337}}^1$

素因数の和:659

約数の個数: 64

約数和(自身を含む): 2007882240

約数和(自身を除く): 1016315008

約数列:

[1, 2, 4, 8, 16, 32, 64, 127, 128, 181, 254, 337, 362, 508, 674, 724, 1016, 1348, 1448, 2032, 2696, 2896, 4064, 5392, 5792, 8128, 10784, 11584, 16256, 21568, 22987, 23168, 42799, 43136, 45974, 60997, 85598, 91948, 121994, 171196, 183896, 243988, 342392, 367792, 487976, 684784, 735584, 975952, 1369568, 1471168, 1951904, 2739136, 2942336, 3903808, 5478272, 7746619, 7807616, 15493238, 30986476, 61972952, 123945904, 247891808, 495783616, 991567232]

約数ペア:

[(1, 991567232), (2, 495783616), (4, 247891808), (8, 123945904), (16, 61972952), (32, 30986476), (64, 15493238), (127, 7807616), (128, 7746619), (181, 5478272), (254, 3903808), (337, 2942336), (362, 2739136), (508, 1951904), (674, 1471168), (724, 1369568), (1016, 975952), (1348, 735584), (1448, 684784), (2032, 487976), (2696, 367792), (2896, 342392), (4064, 243988), (5392, 183896), (5792, 171196), (8128, 121994), (10784, 91948), (11584, 85598), (16256, 60997), (21568, 45974), (22987, 43136), (23168, 42799)]