20658944

素因数分解:

$2^8\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{101}}^1$

素因数の和:181

約数の個数: 72

約数和(自身を含む): 45033408

約数和(自身を除く): 24374464

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 47, 64, 68, 94, 101, 128, 136, 188, 202, 256, 272, 376, 404, 544, 752, 799, 808, 1088, 1504, 1598, 1616, 1717, 2176, 3008, 3196, 3232, 3434, 4352, 4747, 6016, 6392, 6464, 6868, 9494, 12032, 12784, 12928, 13736, 18988, 25568, 25856, 27472, 37976, 51136, 54944, 75952, 80699, 102272, 109888, 151904, 161398, 204544, 219776, 303808, 322796, 439552, 607616, 645592, 1215232, 1291184, 2582368, 5164736, 10329472, 20658944]

約数ペア:

[(1, 20658944), (2, 10329472), (4, 5164736), (8, 2582368), (16, 1291184), (17, 1215232), (32, 645592), (34, 607616), (47, 439552), (64, 322796), (68, 303808), (94, 219776), (101, 204544), (128, 161398), (136, 151904), (188, 109888), (202, 102272), (256, 80699), (272, 75952), (376, 54944), (404, 51136), (544, 37976), (752, 27472), (799, 25856), (808, 25568), (1088, 18988), (1504, 13736), (1598, 12928), (1616, 12784), (1717, 12032), (2176, 9494), (3008, 6868), (3196, 6464), (3232, 6392), (3434, 6016), (4352, 4747)]