81789960

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{97369}}^1$

素因数の和:97390

約数の個数: 64

約数和(自身を含む): 280425600

約数和(自身を除く): 198635640

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, 97369, 194738, 292107, 389476, 486845, 584214, 681583, 778952, 973690, 1168428, 1363166, 1460535, 1947380, 2044749, 2336856, 2726332, 2921070, 3407915, 3894760, 4089498, 5452664, 5842140, 6815830, 8178996, 10223745, 11684280, 13631660, 16357992, 20447490, 27263320, 40894980, 81789960]

約数ペア:

[(1, 81789960), (2, 40894980), (3, 27263320), (4, 20447490), (5, 16357992), (6, 13631660), (7, 11684280), (8, 10223745), (10, 8178996), (12, 6815830), (14, 5842140), (15, 5452664), (20, 4089498), (21, 3894760), (24, 3407915), (28, 2921070), (30, 2726332), (35, 2336856), (40, 2044749), (42, 1947380), (56, 1460535), (60, 1363166), (70, 1168428), (84, 973690), (105, 778952), (120, 681583), (140, 584214), (168, 486845), (210, 389476), (280, 292107), (420, 194738), (840, 97369)]