81477440

素因数分解:

$2^6\times 5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{293}}^1$

素因数の和:400

約数の個数: 112

約数和(自身を含む): 215066880

約数和(自身を除く): 133589440

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 79, 80, 88, 110, 158, 160, 176, 220, 293, 316, 320, 352, 395, 440, 586, 632, 704, 790, 869, 880, 1172, 1264, 1465, 1580, 1738, 1760, 2344, 2528, 2930, 3160, 3223, 3476, 3520, 4345, 4688, 5056, 5860, 6320, 6446, 6952, 8690, 9376, 11720, 12640, 12892, 13904, 16115, 17380, 18752, 23147, 23440, 25280, 25784, 27808, 32230, 34760, 46294, 46880, 51568, 55616, 64460, 69520, 92588, 93760, 103136, 115735, 128920, 139040, 185176, 206272, 231470, 254617, 257840, 278080, 370352, 462940, 509234, 515680, 740704, 925880, 1018468, 1031360, 1273085, 1481408, 1851760, 2036936, 2546170, 3703520, 4073872, 5092340, 7407040, 8147744, 10184680, 16295488, 20369360, 40738720, 81477440]

約数ペア:

[(1, 81477440), (2, 40738720), (4, 20369360), (5, 16295488), (8, 10184680), (10, 8147744), (11, 7407040), (16, 5092340), (20, 4073872), (22, 3703520), (32, 2546170), (40, 2036936), (44, 1851760), (55, 1481408), (64, 1273085), (79, 1031360), (80, 1018468), (88, 925880), (110, 740704), (158, 515680), (160, 509234), (176, 462940), (220, 370352), (293, 278080), (316, 257840), (320, 254617), (352, 231470), (395, 206272), (440, 185176), (586, 139040), (632, 128920), (704, 115735), (790, 103136), (869, 93760), (880, 92588), (1172, 69520), (1264, 64460), (1465, 55616), (1580, 51568), (1738, 46880), (1760, 46294), (2344, 34760), (2528, 32230), (2930, 27808), (3160, 25784), (3223, 25280), (3476, 23440), (3520, 23147), (4345, 18752), (4688, 17380), (5056, 16115), (5860, 13904), (6320, 12892), (6446, 12640), (6952, 11720), (8690, 9376)]