20758850

素因数分解:

$2^1\times 5^2\times 7^2\times {\mathrm{37}}^1\times {\mathrm{229}}^1$

素因数の和:292

約数の個数: 72

約数和(自身を含む): 46330740

約数和(自身を除く): 25571890

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 37, 49, 50, 70, 74, 98, 175, 185, 229, 245, 259, 350, 370, 458, 490, 518, 925, 1145, 1225, 1295, 1603, 1813, 1850, 2290, 2450, 2590, 3206, 3626, 5725, 6475, 8015, 8473, 9065, 11221, 11450, 12950, 16030, 16946, 18130, 22442, 40075, 42365, 45325, 56105, 59311, 80150, 84730, 90650, 112210, 118622, 211825, 280525, 296555, 415177, 423650, 561050, 593110, 830354, 1482775, 2075885, 2965550, 4151770, 10379425, 20758850]

約数ペア:

[(1, 20758850), (2, 10379425), (5, 4151770), (7, 2965550), (10, 2075885), (14, 1482775), (25, 830354), (35, 593110), (37, 561050), (49, 423650), (50, 415177), (70, 296555), (74, 280525), (98, 211825), (175, 118622), (185, 112210), (229, 90650), (245, 84730), (259, 80150), (350, 59311), (370, 56105), (458, 45325), (490, 42365), (518, 40075), (925, 22442), (1145, 18130), (1225, 16946), (1295, 16030), (1603, 12950), (1813, 11450), (1850, 11221), (2290, 9065), (2450, 8473), (2590, 8015), (3206, 6475), (3626, 5725)]