20742072

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{3499}}^1$

素因数の和:3540

約数の個数: 64

約数和(自身を含む): 58800000

約数和(自身を除く): 38057928

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 19, 24, 26, 38, 39, 52, 57, 76, 78, 104, 114, 152, 156, 228, 247, 312, 456, 494, 741, 988, 1482, 1976, 2964, 3499, 5928, 6998, 10497, 13996, 20994, 27992, 41988, 45487, 66481, 83976, 90974, 132962, 136461, 181948, 199443, 265924, 272922, 363896, 398886, 531848, 545844, 797772, 864253, 1091688, 1595544, 1728506, 2592759, 3457012, 5185518, 6914024, 10371036, 20742072]

約数ペア:

[(1, 20742072), (2, 10371036), (3, 6914024), (4, 5185518), (6, 3457012), (8, 2592759), (12, 1728506), (13, 1595544), (19, 1091688), (24, 864253), (26, 797772), (38, 545844), (39, 531848), (52, 398886), (57, 363896), (76, 272922), (78, 265924), (104, 199443), (114, 181948), (152, 136461), (156, 132962), (228, 90974), (247, 83976), (312, 66481), (456, 45487), (494, 41988), (741, 27992), (988, 20994), (1482, 13996), (1976, 10497), (2964, 6998), (3499, 5928)]