15665788520

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{205157}}^1$

素因数の和:205274

約数の個数: 64

約数和(自身を含む): 37223867520

約数和(自身を除く): 21558079000

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 83, 92, 115, 166, 184, 230, 332, 415, 460, 664, 830, 920, 1660, 1909, 3320, 3818, 7636, 9545, 15272, 19090, 38180, 76360, 205157, 410314, 820628, 1025785, 1641256, 2051570, 4103140, 4718611, 8206280, 9437222, 17028031, 18874444, 23593055, 34056062, 37748888, 47186110, 68112124, 85140155, 94372220, 136224248, 170280310, 188744440, 340560620, 391644713, 681121240, 783289426, 1566578852, 1958223565, 3133157704, 3916447130, 7832894260, 15665788520]

約数ペア:

[(1, 15665788520), (2, 7832894260), (4, 3916447130), (5, 3133157704), (8, 1958223565), (10, 1566578852), (20, 783289426), (23, 681121240), (40, 391644713), (46, 340560620), (83, 188744440), (92, 170280310), (115, 136224248), (166, 94372220), (184, 85140155), (230, 68112124), (332, 47186110), (415, 37748888), (460, 34056062), (664, 23593055), (830, 18874444), (920, 17028031), (1660, 9437222), (1909, 8206280), (3320, 4718611), (3818, 4103140), (7636, 2051570), (9545, 1641256), (15272, 1025785), (19090, 820628), (38180, 410314), (76360, 205157)]