31515904

素因数分解:

$2^8\times 7^1\times {\mathrm{43}}^1\times {\mathrm{409}}^1$

素因数の和:475

約数の個数: 72

約数和(自身を含む): 73747520

約数和(自身を除く): 42231616

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 43, 56, 64, 86, 112, 128, 172, 224, 256, 301, 344, 409, 448, 602, 688, 818, 896, 1204, 1376, 1636, 1792, 2408, 2752, 2863, 3272, 4816, 5504, 5726, 6544, 9632, 11008, 11452, 13088, 17587, 19264, 22904, 26176, 35174, 38528, 45808, 52352, 70348, 77056, 91616, 104704, 123109, 140696, 183232, 246218, 281392, 366464, 492436, 562784, 732928, 984872, 1125568, 1969744, 2251136, 3939488, 4502272, 7878976, 15757952, 31515904]

約数ペア:

[(1, 31515904), (2, 15757952), (4, 7878976), (7, 4502272), (8, 3939488), (14, 2251136), (16, 1969744), (28, 1125568), (32, 984872), (43, 732928), (56, 562784), (64, 492436), (86, 366464), (112, 281392), (128, 246218), (172, 183232), (224, 140696), (256, 123109), (301, 104704), (344, 91616), (409, 77056), (448, 70348), (602, 52352), (688, 45808), (818, 38528), (896, 35174), (1204, 26176), (1376, 22904), (1636, 19264), (1792, 17587), (2408, 13088), (2752, 11452), (2863, 11008), (3272, 9632), (4816, 6544), (5504, 5726)]