81145400

素因数分解:

$2^3\times 5^2\times 7^1\times {\mathrm{149}}^1\times {\mathrm{389}}^1$

素因数の和:561

約数の個数: 96

約数和(自身を含む): 217620000

約数和(自身を除く): 136474600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 50, 56, 70, 100, 140, 149, 175, 200, 280, 298, 350, 389, 596, 700, 745, 778, 1043, 1192, 1400, 1490, 1556, 1945, 2086, 2723, 2980, 3112, 3725, 3890, 4172, 5215, 5446, 5960, 7450, 7780, 8344, 9725, 10430, 10892, 13615, 14900, 15560, 19450, 20860, 21784, 26075, 27230, 29800, 38900, 41720, 52150, 54460, 57961, 68075, 77800, 104300, 108920, 115922, 136150, 208600, 231844, 272300, 289805, 405727, 463688, 544600, 579610, 811454, 1159220, 1449025, 1622908, 2028635, 2318440, 2898050, 3245816, 4057270, 5796100, 8114540, 10143175, 11592200, 16229080, 20286350, 40572700, 81145400]

約数ペア:

[(1, 81145400), (2, 40572700), (4, 20286350), (5, 16229080), (7, 11592200), (8, 10143175), (10, 8114540), (14, 5796100), (20, 4057270), (25, 3245816), (28, 2898050), (35, 2318440), (40, 2028635), (50, 1622908), (56, 1449025), (70, 1159220), (100, 811454), (140, 579610), (149, 544600), (175, 463688), (200, 405727), (280, 289805), (298, 272300), (350, 231844), (389, 208600), (596, 136150), (700, 115922), (745, 108920), (778, 104300), (1043, 77800), (1192, 68075), (1400, 57961), (1490, 54460), (1556, 52150), (1945, 41720), (2086, 38900), (2723, 29800), (2980, 27230), (3112, 26075), (3725, 21784), (3890, 20860), (4172, 19450), (5215, 15560), (5446, 14900), (5960, 13615), (7450, 10892), (7780, 10430), (8344, 9725)]