20166055

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1$

素因数の和:136

約数の個数: 64

約数和(自身を含む): 32514048

約数和(自身を除く): 12347993

約数列:

[1, 5, 7, 13, 23, 35, 41, 47, 65, 91, 115, 161, 205, 235, 287, 299, 329, 455, 533, 611, 805, 943, 1081, 1435, 1495, 1645, 1927, 2093, 2665, 3055, 3731, 4277, 4715, 5405, 6601, 7567, 9635, 10465, 12259, 13489, 14053, 18655, 21385, 25051, 33005, 37835, 44321, 61295, 67445, 70265, 85813, 98371, 125255, 175357, 221605, 310247, 429065, 491855, 576173, 876785, 1551235, 2880865, 4033211, 20166055]

約数ペア:

[(1, 20166055), (5, 4033211), (7, 2880865), (13, 1551235), (23, 876785), (35, 576173), (41, 491855), (47, 429065), (65, 310247), (91, 221605), (115, 175357), (161, 125255), (205, 98371), (235, 85813), (287, 70265), (299, 67445), (329, 61295), (455, 44321), (533, 37835), (611, 33005), (805, 25051), (943, 21385), (1081, 18655), (1435, 14053), (1495, 13489), (1645, 12259), (1927, 10465), (2093, 9635), (2665, 7567), (3055, 6601), (3731, 5405), (4277, 4715)]