20771540

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{607}}^1$

素因数の和:704

約数の個数: 48

約数和(自身を含む): 45964800

約数和(自身を除く): 25193260

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 59, 116, 118, 145, 236, 290, 295, 580, 590, 607, 1180, 1214, 1711, 2428, 3035, 3422, 6070, 6844, 8555, 12140, 17110, 17603, 34220, 35206, 35813, 70412, 71626, 88015, 143252, 176030, 179065, 352060, 358130, 716260, 1038577, 2077154, 4154308, 5192885, 10385770, 20771540]

約数ペア:

[(1, 20771540), (2, 10385770), (4, 5192885), (5, 4154308), (10, 2077154), (20, 1038577), (29, 716260), (58, 358130), (59, 352060), (116, 179065), (118, 176030), (145, 143252), (236, 88015), (290, 71626), (295, 70412), (580, 35813), (590, 35206), (607, 34220), (1180, 17603), (1214, 17110), (1711, 12140), (2428, 8555), (3035, 6844), (3422, 6070)]