20407776005

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{457}}^1\times {\mathrm{4723}}^1$

素因数の和:5277

約数の個数: 32

約数和(自身を含む): 25755399168

約数和(自身を除く): 5347623163

約数列:

[1, 5, 31, 61, 155, 305, 457, 1891, 2285, 4723, 9455, 14167, 23615, 27877, 70835, 139385, 146413, 288103, 732065, 864187, 1440515, 2158411, 4320935, 8931193, 10792055, 44655965, 66910741, 131663071, 334553705, 658315355, 4081555201, 20407776005]

約数ペア:

[(1, 20407776005), (5, 4081555201), (31, 658315355), (61, 334553705), (155, 131663071), (305, 66910741), (457, 44655965), (1891, 10792055), (2285, 8931193), (4723, 4320935), (9455, 2158411), (14167, 1440515), (23615, 864187), (27877, 732065), (70835, 288103), (139385, 146413)]