19394096

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{641}}^1$

素因数の和:741

約数の個数: 40

約数和(自身を含む): 39485568

約数和(自身を除く): 20091472

約数列:

[1, 2, 4, 8, 16, 31, 61, 62, 122, 124, 244, 248, 488, 496, 641, 976, 1282, 1891, 2564, 3782, 5128, 7564, 10256, 15128, 19871, 30256, 39101, 39742, 78202, 79484, 156404, 158968, 312808, 317936, 625616, 1212131, 2424262, 4848524, 9697048, 19394096]

約数ペア:

[(1, 19394096), (2, 9697048), (4, 4848524), (8, 2424262), (16, 1212131), (31, 625616), (61, 317936), (62, 312808), (122, 158968), (124, 156404), (244, 79484), (248, 78202), (488, 39742), (496, 39101), (641, 30256), (976, 19871), (1282, 15128), (1891, 10256), (2564, 7564), (3782, 5128)]