28604480

素因数分解:

$2^6\times 5^1\times {\mathrm{71}}^1\times {\mathrm{1259}}^1$

素因数の和:1347

約数の個数: 56

約数和(自身を含む): 69128640

約数和(自身を除く): 40524160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 71, 80, 142, 160, 284, 320, 355, 568, 710, 1136, 1259, 1420, 2272, 2518, 2840, 4544, 5036, 5680, 6295, 10072, 11360, 12590, 20144, 22720, 25180, 40288, 50360, 80576, 89389, 100720, 178778, 201440, 357556, 402880, 446945, 715112, 893890, 1430224, 1787780, 2860448, 3575560, 5720896, 7151120, 14302240, 28604480]

約数ペア:

[(1, 28604480), (2, 14302240), (4, 7151120), (5, 5720896), (8, 3575560), (10, 2860448), (16, 1787780), (20, 1430224), (32, 893890), (40, 715112), (64, 446945), (71, 402880), (80, 357556), (142, 201440), (160, 178778), (284, 100720), (320, 89389), (355, 80576), (568, 50360), (710, 40288), (1136, 25180), (1259, 22720), (1420, 20144), (2272, 12590), (2518, 11360), (2840, 10072), (4544, 6295), (5036, 5680)]