8114540

素因数分解:

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

素因数の和:554

約数の個数: 48

約数和(自身を含む): 19656000

約数和(自身を除く): 11541460

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 149, 298, 389, 596, 745, 778, 1043, 1490, 1556, 1945, 2086, 2723, 2980, 3890, 4172, 5215, 5446, 7780, 10430, 10892, 13615, 20860, 27230, 54460, 57961, 115922, 231844, 289805, 405727, 579610, 811454, 1159220, 1622908, 2028635, 4057270, 8114540]

約数ペア:

[(1, 8114540), (2, 4057270), (4, 2028635), (5, 1622908), (7, 1159220), (10, 811454), (14, 579610), (20, 405727), (28, 289805), (35, 231844), (70, 115922), (140, 57961), (149, 54460), (298, 27230), (389, 20860), (596, 13615), (745, 10892), (778, 10430), (1043, 7780), (1490, 5446), (1556, 5215), (1945, 4172), (2086, 3890), (2723, 2980)]