17857420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{229}}^1\times {\mathrm{557}}^1$

素因数の和:802

約数の個数: 48

約数和(自身を含む): 43122240

約数和(自身を除く): 25264820

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 229, 458, 557, 916, 1114, 1145, 1603, 2228, 2290, 2785, 3206, 3899, 4580, 5570, 6412, 7798, 8015, 11140, 15596, 16030, 19495, 32060, 38990, 77980, 127553, 255106, 510212, 637765, 892871, 1275530, 1785742, 2551060, 3571484, 4464355, 8928710, 17857420]

約数ペア:

[(1, 17857420), (2, 8928710), (4, 4464355), (5, 3571484), (7, 2551060), (10, 1785742), (14, 1275530), (20, 892871), (28, 637765), (35, 510212), (70, 255106), (140, 127553), (229, 77980), (458, 38990), (557, 32060), (916, 19495), (1114, 16030), (1145, 15596), (1603, 11140), (2228, 8015), (2290, 7798), (2785, 6412), (3206, 5570), (3899, 4580)]