281361808

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{193243}}^1$

素因数の和:193271

約数の個数: 40

約数和(自身を含む): 670943168

約数和(自身を除く): 389581360

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 364, 728, 1456, 193243, 386486, 772972, 1352701, 1545944, 2512159, 2705402, 3091888, 5024318, 5410804, 10048636, 10821608, 17585113, 20097272, 21643216, 35170226, 40194544, 70340452, 140680904, 281361808]

約数ペア:

[(1, 281361808), (2, 140680904), (4, 70340452), (7, 40194544), (8, 35170226), (13, 21643216), (14, 20097272), (16, 17585113), (26, 10821608), (28, 10048636), (52, 5410804), (56, 5024318), (91, 3091888), (104, 2705402), (112, 2512159), (182, 1545944), (208, 1352701), (364, 772972), (728, 386486), (1456, 193243)]