20105204065

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{571}}^1\times {\mathrm{3821}}^1$

素因数の和:4513

約数の個数: 32

約数和(自身を含む): 25709523840

約数和(自身を除く): 5604319775

約数列:

[1, 5, 19, 95, 97, 485, 571, 1843, 2855, 3821, 9215, 10849, 19105, 54245, 55387, 72599, 276935, 362995, 370637, 1052353, 1853185, 2181791, 5261765, 7042103, 10908955, 35210515, 41454029, 207270145, 211633727, 1058168635, 4021040813, 20105204065]

約数ペア:

[(1, 20105204065), (5, 4021040813), (19, 1058168635), (95, 211633727), (97, 207270145), (485, 41454029), (571, 35210515), (1843, 10908955), (2855, 7042103), (3821, 5261765), (9215, 2181791), (10849, 1853185), (19105, 1052353), (54245, 370637), (55387, 362995), (72599, 276935)]