20157468

素因数分解:

$2^2\times 3^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1\times {\mathrm{401}}^1$

素因数の和:538

約数の個数: 48

約数和(自身を含む): 48625920

約数和(自身を除く): 28468452

約数列:

[1, 2, 3, 4, 6, 12, 59, 71, 118, 142, 177, 213, 236, 284, 354, 401, 426, 708, 802, 852, 1203, 1604, 2406, 4189, 4812, 8378, 12567, 16756, 23659, 25134, 28471, 47318, 50268, 56942, 70977, 85413, 94636, 113884, 141954, 170826, 283908, 341652, 1679789, 3359578, 5039367, 6719156, 10078734, 20157468]

約数ペア:

[(1, 20157468), (2, 10078734), (3, 6719156), (4, 5039367), (6, 3359578), (12, 1679789), (59, 341652), (71, 283908), (118, 170826), (142, 141954), (177, 113884), (213, 94636), (236, 85413), (284, 70977), (354, 56942), (401, 50268), (426, 47318), (708, 28471), (802, 25134), (852, 23659), (1203, 16756), (1604, 12567), (2406, 8378), (4189, 4812)]