81618964

素因数分解:

$2^2\times 7^1\times {\mathrm{73}}^2\times {\mathrm{547}}^1$

素因数の和:704

約数の個数: 36

約数和(自身を含む): 165807264

約数和(自身を除く): 84188300

約数列:

[1, 2, 4, 7, 14, 28, 73, 146, 292, 511, 547, 1022, 1094, 2044, 2188, 3829, 5329, 7658, 10658, 15316, 21316, 37303, 39931, 74606, 79862, 149212, 159724, 279517, 559034, 1118068, 2914963, 5829926, 11659852, 20404741, 40809482, 81618964]

約数ペア:

[(1, 81618964), (2, 40809482), (4, 20404741), (7, 11659852), (14, 5829926), (28, 2914963), (73, 1118068), (146, 559034), (292, 279517), (511, 159724), (547, 149212), (1022, 79862), (1094, 74606), (2044, 39931), (2188, 37303), (3829, 21316), (5329, 15316), (7658, 10658)]