257703888

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^1\times {\mathrm{412987}}^1$

素因数の和:413011

約数の個数: 40

約数和(自身を含む): 716947168

約数和(自身を除く): 459243280

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 39, 48, 52, 78, 104, 156, 208, 312, 624, 412987, 825974, 1238961, 1651948, 2477922, 3303896, 4955844, 5368831, 6607792, 9911688, 10737662, 16106493, 19823376, 21475324, 32212986, 42950648, 64425972, 85901296, 128851944, 257703888]

約数ペア:

[(1, 257703888), (2, 128851944), (3, 85901296), (4, 64425972), (6, 42950648), (8, 32212986), (12, 21475324), (13, 19823376), (16, 16106493), (24, 10737662), (26, 9911688), (39, 6607792), (48, 5368831), (52, 4955844), (78, 3303896), (104, 2477922), (156, 1651948), (208, 1238961), (312, 825974), (624, 412987)]