20165881216

素因数分解:

$2^7\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{170689}}^1$

素因数の和:170787

約数の個数: 64

約数和(自身を含む): 43874157600

約数和(自身を除く): 23708276384

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 71, 104, 128, 142, 208, 284, 416, 568, 832, 923, 1136, 1664, 1846, 2272, 3692, 4544, 7384, 9088, 14768, 29536, 59072, 118144, 170689, 341378, 682756, 1365512, 2218957, 2731024, 4437914, 5462048, 8875828, 10924096, 12118919, 17751656, 21848192, 24237838, 35503312, 48475676, 71006624, 96951352, 142013248, 157545947, 193902704, 284026496, 315091894, 387805408, 630183788, 775610816, 1260367576, 1551221632, 2520735152, 5041470304, 10082940608, 20165881216]

約数ペア:

[(1, 20165881216), (2, 10082940608), (4, 5041470304), (8, 2520735152), (13, 1551221632), (16, 1260367576), (26, 775610816), (32, 630183788), (52, 387805408), (64, 315091894), (71, 284026496), (104, 193902704), (128, 157545947), (142, 142013248), (208, 96951352), (284, 71006624), (416, 48475676), (568, 35503312), (832, 24237838), (923, 21848192), (1136, 17751656), (1664, 12118919), (1846, 10924096), (2272, 8875828), (3692, 5462048), (4544, 4437914), (7384, 2731024), (9088, 2218957), (14768, 1365512), (29536, 682756), (59072, 341378), (118144, 170689)]