28006636

素因数分解:

$2^2\times 7^3\times {\mathrm{137}}^1\times {\mathrm{149}}^1$

素因数の和:311

約数の個数: 48

約数和(自身を含む): 57960000

約数和(自身を除く): 29953364

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 137, 149, 196, 274, 298, 343, 548, 596, 686, 959, 1043, 1372, 1918, 2086, 3836, 4172, 6713, 7301, 13426, 14602, 20413, 26852, 29204, 40826, 46991, 51107, 81652, 93982, 102214, 142891, 187964, 204428, 285782, 571564, 1000237, 2000474, 4000948, 7001659, 14003318, 28006636]

約数ペア:

[(1, 28006636), (2, 14003318), (4, 7001659), (7, 4000948), (14, 2000474), (28, 1000237), (49, 571564), (98, 285782), (137, 204428), (149, 187964), (196, 142891), (274, 102214), (298, 93982), (343, 81652), (548, 51107), (596, 46991), (686, 40826), (959, 29204), (1043, 26852), (1372, 20413), (1918, 14602), (2086, 13426), (3836, 7301), (4172, 6713)]