81880400

素因数分解:

$2^4\times 5^2\times 7^1\times {\mathrm{29243}}^1$

素因数の和:29268

約数の個数: 60

約数和(自身を含む): 224827872

約数和(自身を除く): 142947472

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 35, 40, 50, 56, 70, 80, 100, 112, 140, 175, 200, 280, 350, 400, 560, 700, 1400, 2800, 29243, 58486, 116972, 146215, 204701, 233944, 292430, 409402, 467888, 584860, 731075, 818804, 1023505, 1169720, 1462150, 1637608, 2047010, 2339440, 2924300, 3275216, 4094020, 5117525, 5848600, 8188040, 10235050, 11697200, 16376080, 20470100, 40940200, 81880400]

約数ペア:

[(1, 81880400), (2, 40940200), (4, 20470100), (5, 16376080), (7, 11697200), (8, 10235050), (10, 8188040), (14, 5848600), (16, 5117525), (20, 4094020), (25, 3275216), (28, 2924300), (35, 2339440), (40, 2047010), (50, 1637608), (56, 1462150), (70, 1169720), (80, 1023505), (100, 818804), (112, 731075), (140, 584860), (175, 467888), (200, 409402), (280, 292430), (350, 233944), (400, 204701), (560, 146215), (700, 116972), (1400, 58486), (2800, 29243)]