28131796

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{613}}^1$

素因数の和:784

約数の個数: 48

約数和(自身を含む): 61891200

約数和(自身を除く): 33759404

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 149, 154, 298, 308, 596, 613, 1043, 1226, 1639, 2086, 2452, 3278, 4172, 4291, 6556, 6743, 8582, 11473, 13486, 17164, 22946, 26972, 45892, 47201, 91337, 94402, 182674, 188804, 365348, 639359, 1004707, 1278718, 2009414, 2557436, 4018828, 7032949, 14065898, 28131796]

約数ペア:

[(1, 28131796), (2, 14065898), (4, 7032949), (7, 4018828), (11, 2557436), (14, 2009414), (22, 1278718), (28, 1004707), (44, 639359), (77, 365348), (149, 188804), (154, 182674), (298, 94402), (308, 91337), (596, 47201), (613, 45892), (1043, 26972), (1226, 22946), (1639, 17164), (2086, 13486), (2452, 11473), (3278, 8582), (4172, 6743), (4291, 6556)]