81527460

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{194113}}^1$

素因数の和:194132

約数の個数: 48

約数和(自身を含む): 260889216

約数和(自身を除く): 179361756

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 194113, 388226, 582339, 776452, 970565, 1164678, 1358791, 1941130, 2329356, 2717582, 2911695, 3882260, 4076373, 5435164, 5823390, 6793955, 8152746, 11646780, 13587910, 16305492, 20381865, 27175820, 40763730, 81527460]

約数ペア:

[(1, 81527460), (2, 40763730), (3, 27175820), (4, 20381865), (5, 16305492), (6, 13587910), (7, 11646780), (10, 8152746), (12, 6793955), (14, 5823390), (15, 5435164), (20, 4076373), (21, 3882260), (28, 2911695), (30, 2717582), (35, 2329356), (42, 1941130), (60, 1358791), (70, 1164678), (84, 970565), (105, 776452), (140, 582339), (210, 388226), (420, 194113)]