204600520

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{64747}}^1$

素因数の和:64837

約数の個数: 32

約数和(自身を含む): 466185600

約数和(自身を除く): 261585080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 1580, 3160, 64747, 129494, 258988, 323735, 517976, 647470, 1294940, 2589880, 5115013, 10230026, 20460052, 25575065, 40920104, 51150130, 102300260, 204600520]

約数ペア:

[(1, 204600520), (2, 102300260), (4, 51150130), (5, 40920104), (8, 25575065), (10, 20460052), (20, 10230026), (40, 5115013), (79, 2589880), (158, 1294940), (316, 647470), (395, 517976), (632, 323735), (790, 258988), (1580, 129494), (3160, 64747)]