20857374592

素因数分解:

$2^7\times {\mathrm{127}}^1\times {\mathrm{823}}^1\times {\mathrm{1559}}^1$

素因数の和:2523

約数の個数: 64

約数和(自身を含む): 41956761600

約数和(自身を除く): 21099387008

約数列:

[1, 2, 4, 8, 16, 32, 64, 127, 128, 254, 508, 823, 1016, 1559, 1646, 2032, 3118, 3292, 4064, 6236, 6584, 8128, 12472, 13168, 16256, 24944, 26336, 49888, 52672, 99776, 104521, 105344, 197993, 199552, 209042, 395986, 418084, 791972, 836168, 1283057, 1583944, 1672336, 2566114, 3167888, 3344672, 5132228, 6335776, 6689344, 10264456, 12671552, 13378688, 20528912, 25343104, 41057824, 82115648, 162948239, 164231296, 325896478, 651792956, 1303585912, 2607171824, 5214343648, 10428687296, 20857374592]

約数ペア:

[(1, 20857374592), (2, 10428687296), (4, 5214343648), (8, 2607171824), (16, 1303585912), (32, 651792956), (64, 325896478), (127, 164231296), (128, 162948239), (254, 82115648), (508, 41057824), (823, 25343104), (1016, 20528912), (1559, 13378688), (1646, 12671552), (2032, 10264456), (3118, 6689344), (3292, 6335776), (4064, 5132228), (6236, 3344672), (6584, 3167888), (8128, 2566114), (12472, 1672336), (13168, 1583944), (16256, 1283057), (24944, 836168), (26336, 791972), (49888, 418084), (52672, 395986), (99776, 209042), (104521, 199552), (105344, 197993)]