16385320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{421}}^1$

素因数の和:578

約数の個数: 64

約数和(自身を含む): 42537600

約数和(自身を除く): 26152280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 139, 140, 278, 280, 421, 556, 695, 842, 973, 1112, 1390, 1684, 1946, 2105, 2780, 2947, 3368, 3892, 4210, 4865, 5560, 5894, 7784, 8420, 9730, 11788, 14735, 16840, 19460, 23576, 29470, 38920, 58519, 58940, 117038, 117880, 234076, 292595, 409633, 468152, 585190, 819266, 1170380, 1638532, 2048165, 2340760, 3277064, 4096330, 8192660, 16385320]

約数ペア:

[(1, 16385320), (2, 8192660), (4, 4096330), (5, 3277064), (7, 2340760), (8, 2048165), (10, 1638532), (14, 1170380), (20, 819266), (28, 585190), (35, 468152), (40, 409633), (56, 292595), (70, 234076), (139, 117880), (140, 117038), (278, 58940), (280, 58519), (421, 38920), (556, 29470), (695, 23576), (842, 19460), (973, 16840), (1112, 14735), (1390, 11788), (1684, 9730), (1946, 8420), (2105, 7784), (2780, 5894), (2947, 5560), (3368, 4865), (3892, 4210)]