128788460

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{7211}}^1$

素因数の和:7286

約数の個数: 48

約数和(自身を含む): 290787840

約数和(自身を除く): 161999380

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 47, 76, 94, 95, 188, 190, 235, 380, 470, 893, 940, 1786, 3572, 4465, 7211, 8930, 14422, 17860, 28844, 36055, 72110, 137009, 144220, 274018, 338917, 548036, 677834, 685045, 1355668, 1370090, 1694585, 2740180, 3389170, 6439423, 6778340, 12878846, 25757692, 32197115, 64394230, 128788460]

約数ペア:

[(1, 128788460), (2, 64394230), (4, 32197115), (5, 25757692), (10, 12878846), (19, 6778340), (20, 6439423), (38, 3389170), (47, 2740180), (76, 1694585), (94, 1370090), (95, 1355668), (188, 685045), (190, 677834), (235, 548036), (380, 338917), (470, 274018), (893, 144220), (940, 137009), (1786, 72110), (3572, 36055), (4465, 28844), (7211, 17860), (8930, 14422)]