20579908

素因数分解:

$2^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{97}}^1$

素因数の和:220

約数の個数: 48

約数和(自身を含む): 39513600

約数和(自身を除く): 18933692

約数列:

[1, 2, 4, 29, 31, 58, 59, 62, 97, 116, 118, 124, 194, 236, 388, 899, 1711, 1798, 1829, 2813, 3007, 3422, 3596, 3658, 5626, 5723, 6014, 6844, 7316, 11252, 11446, 12028, 22892, 53041, 87203, 106082, 165967, 174406, 177413, 212164, 331934, 348812, 354826, 663868, 709652, 5144977, 10289954, 20579908]

約数ペア:

[(1, 20579908), (2, 10289954), (4, 5144977), (29, 709652), (31, 663868), (58, 354826), (59, 348812), (62, 331934), (97, 212164), (116, 177413), (118, 174406), (124, 165967), (194, 106082), (236, 87203), (388, 53041), (899, 22892), (1711, 12028), (1798, 11446), (1829, 11252), (2813, 7316), (3007, 6844), (3422, 6014), (3596, 5723), (3658, 5626)]