19959888

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{1103}}^1$

素因数の和:1156

約数の個数: 80

約数和(自身を含む): 57496320

約数和(自身を除く): 37536432

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 29, 39, 48, 52, 58, 78, 87, 104, 116, 156, 174, 208, 232, 312, 348, 377, 464, 624, 696, 754, 1103, 1131, 1392, 1508, 2206, 2262, 3016, 3309, 4412, 4524, 6032, 6618, 8824, 9048, 13236, 14339, 17648, 18096, 26472, 28678, 31987, 43017, 52944, 57356, 63974, 86034, 95961, 114712, 127948, 172068, 191922, 229424, 255896, 344136, 383844, 415831, 511792, 688272, 767688, 831662, 1247493, 1535376, 1663324, 2494986, 3326648, 4989972, 6653296, 9979944, 19959888]

約数ペア:

[(1, 19959888), (2, 9979944), (3, 6653296), (4, 4989972), (6, 3326648), (8, 2494986), (12, 1663324), (13, 1535376), (16, 1247493), (24, 831662), (26, 767688), (29, 688272), (39, 511792), (48, 415831), (52, 383844), (58, 344136), (78, 255896), (87, 229424), (104, 191922), (116, 172068), (156, 127948), (174, 114712), (208, 95961), (232, 86034), (312, 63974), (348, 57356), (377, 52944), (464, 43017), (624, 31987), (696, 28678), (754, 26472), (1103, 18096), (1131, 17648), (1392, 14339), (1508, 13236), (2206, 9048), (2262, 8824), (3016, 6618), (3309, 6032), (4412, 4524)]