28755560

素因数分解:

$2^3\times 5^1\times {\mathrm{571}}^1\times {\mathrm{1259}}^1$

素因数の和:1841

約数の個数: 32

約数和(自身を含む): 64864800

約数和(自身を除く): 36109240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 571, 1142, 1259, 2284, 2518, 2855, 4568, 5036, 5710, 6295, 10072, 11420, 12590, 22840, 25180, 50360, 718889, 1437778, 2875556, 3594445, 5751112, 7188890, 14377780, 28755560]

約数ペア:

[(1, 28755560), (2, 14377780), (4, 7188890), (5, 5751112), (8, 3594445), (10, 2875556), (20, 1437778), (40, 718889), (571, 50360), (1142, 25180), (1259, 22840), (2284, 12590), (2518, 11420), (2855, 10072), (4568, 6295), (5036, 5710)]