20383812

素因数分解:

$2^2\times 3^5\times {\mathrm{67}}^1\times {\mathrm{313}}^1$

素因数の和:399

約数の個数: 72

約数和(自身を含む): 54404896

約数和(自身を除く): 34021084

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 67, 81, 108, 134, 162, 201, 243, 268, 313, 324, 402, 486, 603, 626, 804, 939, 972, 1206, 1252, 1809, 1878, 2412, 2817, 3618, 3756, 5427, 5634, 7236, 8451, 10854, 11268, 16281, 16902, 20971, 21708, 25353, 32562, 33804, 41942, 50706, 62913, 65124, 76059, 83884, 101412, 125826, 152118, 188739, 251652, 304236, 377478, 566217, 754956, 1132434, 1698651, 2264868, 3397302, 5095953, 6794604, 10191906, 20383812]

約数ペア:

[(1, 20383812), (2, 10191906), (3, 6794604), (4, 5095953), (6, 3397302), (9, 2264868), (12, 1698651), (18, 1132434), (27, 754956), (36, 566217), (54, 377478), (67, 304236), (81, 251652), (108, 188739), (134, 152118), (162, 125826), (201, 101412), (243, 83884), (268, 76059), (313, 65124), (324, 62913), (402, 50706), (486, 41942), (603, 33804), (626, 32562), (804, 25353), (939, 21708), (972, 20971), (1206, 16902), (1252, 16281), (1809, 11268), (1878, 10854), (2412, 8451), (2817, 7236), (3618, 5634), (3756, 5427)]