20203020

素因数分解:

$2^2\times 3^5\times 5^1\times {\mathrm{4157}}^1$

素因数の和:4181

約数の個数: 72

約数和(自身を含む): 63567504

約数和(自身を除く): 43364484

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 243, 270, 324, 405, 486, 540, 810, 972, 1215, 1620, 2430, 4157, 4860, 8314, 12471, 16628, 20785, 24942, 37413, 41570, 49884, 62355, 74826, 83140, 112239, 124710, 149652, 187065, 224478, 249420, 336717, 374130, 448956, 561195, 673434, 748260, 1010151, 1122390, 1346868, 1683585, 2020302, 2244780, 3367170, 4040604, 5050755, 6734340, 10101510, 20203020]

約数ペア:

[(1, 20203020), (2, 10101510), (3, 6734340), (4, 5050755), (5, 4040604), (6, 3367170), (9, 2244780), (10, 2020302), (12, 1683585), (15, 1346868), (18, 1122390), (20, 1010151), (27, 748260), (30, 673434), (36, 561195), (45, 448956), (54, 374130), (60, 336717), (81, 249420), (90, 224478), (108, 187065), (135, 149652), (162, 124710), (180, 112239), (243, 83140), (270, 74826), (324, 62355), (405, 49884), (486, 41570), (540, 37413), (810, 24942), (972, 20785), (1215, 16628), (1620, 12471), (2430, 8314), (4157, 4860)]