20155744

素因数分解:

$2^5\times 7^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{79}}^1$

素因数の和:180

約数の個数: 96

約数和(自身を含む): 49351680

約数和(自身を除く): 29195936

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 32, 34, 56, 67, 68, 79, 112, 119, 134, 136, 158, 224, 238, 268, 272, 316, 469, 476, 536, 544, 553, 632, 938, 952, 1072, 1106, 1139, 1264, 1343, 1876, 1904, 2144, 2212, 2278, 2528, 2686, 3752, 3808, 4424, 4556, 5293, 5372, 7504, 7973, 8848, 9112, 9401, 10586, 10744, 15008, 15946, 17696, 18224, 18802, 21172, 21488, 31892, 36448, 37051, 37604, 42344, 42976, 63784, 74102, 75208, 84688, 89981, 127568, 148204, 150416, 169376, 179962, 255136, 296408, 300832, 359924, 592816, 629867, 719848, 1185632, 1259734, 1439696, 2519468, 2879392, 5038936, 10077872, 20155744]

約数ペア:

[(1, 20155744), (2, 10077872), (4, 5038936), (7, 2879392), (8, 2519468), (14, 1439696), (16, 1259734), (17, 1185632), (28, 719848), (32, 629867), (34, 592816), (56, 359924), (67, 300832), (68, 296408), (79, 255136), (112, 179962), (119, 169376), (134, 150416), (136, 148204), (158, 127568), (224, 89981), (238, 84688), (268, 75208), (272, 74102), (316, 63784), (469, 42976), (476, 42344), (536, 37604), (544, 37051), (553, 36448), (632, 31892), (938, 21488), (952, 21172), (1072, 18802), (1106, 18224), (1139, 17696), (1264, 15946), (1343, 15008), (1876, 10744), (1904, 10586), (2144, 9401), (2212, 9112), (2278, 8848), (2528, 7973), (2686, 7504), (3752, 5372), (3808, 5293), (4424, 4556)]