209977320

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{249973}}^1$

素因数の和:249994

約数の個数: 64

約数和(自身を含む): 719925120

約数和(自身を除く): 509947800

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 249973, 499946, 749919, 999892, 1249865, 1499838, 1749811, 1999784, 2499730, 2999676, 3499622, 3749595, 4999460, 5249433, 5999352, 6999244, 7499190, 8749055, 9998920, 10498866, 13998488, 14998380, 17498110, 20997732, 26247165, 29996760, 34996220, 41995464, 52494330, 69992440, 104988660, 209977320]

約数ペア:

[(1, 209977320), (2, 104988660), (3, 69992440), (4, 52494330), (5, 41995464), (6, 34996220), (7, 29996760), (8, 26247165), (10, 20997732), (12, 17498110), (14, 14998380), (15, 13998488), (20, 10498866), (21, 9998920), (24, 8749055), (28, 7499190), (30, 6999244), (35, 5999352), (40, 5249433), (42, 4999460), (56, 3749595), (60, 3499622), (70, 2999676), (84, 2499730), (105, 1999784), (120, 1749811), (140, 1499838), (168, 1249865), (210, 999892), (280, 749919), (420, 499946), (840, 249973)]