20789065

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{137}}^1$

素因数の和:273

約数の個数: 32

約数和(自身を含む): 28615680

約数和(自身を除く): 7826615

約数列:

[1, 5, 11, 31, 55, 89, 137, 155, 341, 445, 685, 979, 1507, 1705, 2759, 4247, 4895, 7535, 12193, 13795, 21235, 30349, 46717, 60965, 134123, 151745, 233585, 377983, 670615, 1889915, 4157813, 20789065]

約数ペア:

[(1, 20789065), (5, 4157813), (11, 1889915), (31, 670615), (55, 377983), (89, 233585), (137, 151745), (155, 134123), (341, 60965), (445, 46717), (685, 30349), (979, 21235), (1507, 13795), (1705, 12193), (2759, 7535), (4247, 4895)]