20304496

素因数分解:

$2^4\times {\mathrm{59}}^1\times {\mathrm{137}}^1\times {\mathrm{157}}^1$

素因数の和:361

約数の個数: 40

約数和(自身を含む): 40555440

約数和(自身を除く): 20250944

約数列:

[1, 2, 4, 8, 16, 59, 118, 137, 157, 236, 274, 314, 472, 548, 628, 944, 1096, 1256, 2192, 2512, 8083, 9263, 16166, 18526, 21509, 32332, 37052, 43018, 64664, 74104, 86036, 129328, 148208, 172072, 344144, 1269031, 2538062, 5076124, 10152248, 20304496]

約数ペア:

[(1, 20304496), (2, 10152248), (4, 5076124), (8, 2538062), (16, 1269031), (59, 344144), (118, 172072), (137, 148208), (157, 129328), (236, 86036), (274, 74104), (314, 64664), (472, 43018), (548, 37052), (628, 32332), (944, 21509), (1096, 18526), (1256, 16166), (2192, 9263), (2512, 8083)]