72870920

素因数分解:

$2^3\times 5^1\times {\mathrm{1259}}^1\times {\mathrm{1447}}^1$

素因数の和:2717

約数の個数: 32

約数和(自身を含む): 164203200

約数和(自身を除く): 91332280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1259, 1447, 2518, 2894, 5036, 5788, 6295, 7235, 10072, 11576, 12590, 14470, 25180, 28940, 50360, 57880, 1821773, 3643546, 7287092, 9108865, 14574184, 18217730, 36435460, 72870920]

約数ペア:

[(1, 72870920), (2, 36435460), (4, 18217730), (5, 14574184), (8, 9108865), (10, 7287092), (20, 3643546), (40, 1821773), (1259, 57880), (1447, 50360), (2518, 28940), (2894, 25180), (5036, 14470), (5788, 12590), (6295, 11576), (7235, 10072)]