820123278

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{284173}}^1$

素因数の和:284228

約数の個数: 32

約数和(自身を含む): 1814166816

約数和(自身を除く): 994043538

約数列:

[1, 2, 3, 6, 13, 26, 37, 39, 74, 78, 111, 222, 481, 962, 1443, 2886, 284173, 568346, 852519, 1705038, 3694249, 7388498, 10514401, 11082747, 21028802, 22165494, 31543203, 63086406, 136687213, 273374426, 410061639, 820123278]

約数ペア:

[(1, 820123278), (2, 410061639), (3, 273374426), (6, 136687213), (13, 63086406), (26, 31543203), (37, 22165494), (39, 21028802), (74, 11082747), (78, 10514401), (111, 7388498), (222, 3694249), (481, 1705038), (962, 852519), (1443, 568346), (2886, 284173)]