20208650384

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{433}}^1\times {\mathrm{1297}}^1$

素因数の和:1924

約数の個数: 80

約数和(自身を含む): 42540579312

約数和(自身を除く): 22331928928

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 173, 208, 346, 433, 692, 866, 1297, 1384, 1732, 2249, 2594, 2768, 3464, 4498, 5188, 5629, 6928, 8996, 10376, 11258, 16861, 17992, 20752, 22516, 33722, 35984, 45032, 67444, 74909, 90064, 134888, 149818, 224381, 269776, 299636, 448762, 561601, 599272, 897524, 973817, 1123202, 1198544, 1795048, 1947634, 2246404, 2916953, 3590096, 3895268, 4492808, 5833906, 7300813, 7790536, 8985616, 11667812, 14601626, 15581072, 23335624, 29203252, 46671248, 58406504, 97156973, 116813008, 194313946, 388627892, 777255784, 1263040649, 1554511568, 2526081298, 5052162596, 10104325192, 20208650384]

約数ペア:

[(1, 20208650384), (2, 10104325192), (4, 5052162596), (8, 2526081298), (13, 1554511568), (16, 1263040649), (26, 777255784), (52, 388627892), (104, 194313946), (173, 116813008), (208, 97156973), (346, 58406504), (433, 46671248), (692, 29203252), (866, 23335624), (1297, 15581072), (1384, 14601626), (1732, 11667812), (2249, 8985616), (2594, 7790536), (2768, 7300813), (3464, 5833906), (4498, 4492808), (5188, 3895268), (5629, 3590096), (6928, 2916953), (8996, 2246404), (10376, 1947634), (11258, 1795048), (16861, 1198544), (17992, 1123202), (20752, 973817), (22516, 897524), (33722, 599272), (35984, 561601), (45032, 448762), (67444, 299636), (74909, 269776), (90064, 224381), (134888, 149818)]