17640490

素因数分解:

$2^1\times 5^1\times 7^3\times {\mathrm{37}}^1\times {\mathrm{139}}^1$

素因数の和:204

約数の個数: 64

約数和(自身を含む): 38304000

約数和(自身を除く): 20663510

約数列:

[1, 2, 5, 7, 10, 14, 35, 37, 49, 70, 74, 98, 139, 185, 245, 259, 278, 343, 370, 490, 518, 686, 695, 973, 1295, 1390, 1715, 1813, 1946, 2590, 3430, 3626, 4865, 5143, 6811, 9065, 9730, 10286, 12691, 13622, 18130, 25382, 25715, 34055, 36001, 47677, 51430, 63455, 68110, 72002, 95354, 126910, 180005, 238385, 252007, 360010, 476770, 504014, 1260035, 1764049, 2520070, 3528098, 8820245, 17640490]

約数ペア:

[(1, 17640490), (2, 8820245), (5, 3528098), (7, 2520070), (10, 1764049), (14, 1260035), (35, 504014), (37, 476770), (49, 360010), (70, 252007), (74, 238385), (98, 180005), (139, 126910), (185, 95354), (245, 72002), (259, 68110), (278, 63455), (343, 51430), (370, 47677), (490, 36001), (518, 34055), (686, 25715), (695, 25382), (973, 18130), (1295, 13622), (1390, 12691), (1715, 10286), (1813, 9730), (1946, 9065), (2590, 6811), (3430, 5143), (3626, 4865)]