128843402020

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{4729}}^1\times {\mathrm{10399}}^1$

素因数の和:15268

約数の個数: 48

約数和(自身を含む): 272720448000

約数和(自身を除く): 143877045980

約数列:

[1, 2, 4, 5, 10, 20, 131, 262, 524, 655, 1310, 2620, 4729, 9458, 10399, 18916, 20798, 23645, 41596, 47290, 51995, 94580, 103990, 207980, 619499, 1238998, 1362269, 2477996, 2724538, 3097495, 5449076, 6194990, 6811345, 12389980, 13622690, 27245380, 49176871, 98353742, 196707484, 245884355, 491768710, 983537420, 6442170101, 12884340202, 25768680404, 32210850505, 64421701010, 128843402020]

約数ペア:

[(1, 128843402020), (2, 64421701010), (4, 32210850505), (5, 25768680404), (10, 12884340202), (20, 6442170101), (131, 983537420), (262, 491768710), (524, 245884355), (655, 196707484), (1310, 98353742), (2620, 49176871), (4729, 27245380), (9458, 13622690), (10399, 12389980), (18916, 6811345), (20798, 6194990), (23645, 5449076), (41596, 3097495), (47290, 2724538), (51995, 2477996), (94580, 1362269), (103990, 1238998), (207980, 619499)]