65643320

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{26903}}^1$

素因数の和:26975

約数の個数: 32

約数和(自身を含む): 150124320

約数和(自身を除く): 84481000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 26903, 53806, 107612, 134515, 215224, 269030, 538060, 1076120, 1641083, 3282166, 6564332, 8205415, 13128664, 16410830, 32821660, 65643320]

約数ペア:

[(1, 65643320), (2, 32821660), (4, 16410830), (5, 13128664), (8, 8205415), (10, 6564332), (20, 3282166), (40, 1641083), (61, 1076120), (122, 538060), (244, 269030), (305, 215224), (488, 134515), (610, 107612), (1220, 53806), (2440, 26903)]