20416860

素因数分解:

$2^2\times 3^5\times 5^1\times {\mathrm{4201}}^1$

素因数の和:4225

約数の個数: 72

約数和(自身を含む): 64240176

約数和(自身を除く): 43823316

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, 4201, 4860, 8402, 12603, 16804, 21005, 25206, 37809, 42010, 50412, 63015, 75618, 84020, 113427, 126030, 151236, 189045, 226854, 252060, 340281, 378090, 453708, 567135, 680562, 756180, 1020843, 1134270, 1361124, 1701405, 2041686, 2268540, 3402810, 4083372, 5104215, 6805620, 10208430, 20416860]

約数ペア:

[(1, 20416860), (2, 10208430), (3, 6805620), (4, 5104215), (5, 4083372), (6, 3402810), (9, 2268540), (10, 2041686), (12, 1701405), (15, 1361124), (18, 1134270), (20, 1020843), (27, 756180), (30, 680562), (36, 567135), (45, 453708), (54, 378090), (60, 340281), (81, 252060), (90, 226854), (108, 189045), (135, 151236), (162, 126030), (180, 113427), (243, 84020), (270, 75618), (324, 63015), (405, 50412), (486, 42010), (540, 37809), (810, 25206), (972, 21005), (1215, 16804), (1620, 12603), (2430, 8402), (4201, 4860)]