72090004

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^2\times {\mathrm{31}}^1\times {\mathrm{157}}^1$

素因数の和:245

約数の個数: 72

約数和(自身を含む): 156574208

約数和(自身を除く): 84484204

約数列:

[1, 2, 4, 7, 14, 23, 28, 31, 46, 62, 92, 124, 157, 161, 217, 314, 322, 434, 529, 628, 644, 713, 868, 1058, 1099, 1426, 2116, 2198, 2852, 3611, 3703, 4396, 4867, 4991, 7222, 7406, 9734, 9982, 14444, 14812, 16399, 19468, 19964, 25277, 32798, 34069, 50554, 65596, 68138, 83053, 101108, 111941, 114793, 136276, 166106, 223882, 229586, 332212, 447764, 459172, 581371, 783587, 1162742, 1567174, 2325484, 2574643, 3134348, 5149286, 10298572, 18022501, 36045002, 72090004]

約数ペア:

[(1, 72090004), (2, 36045002), (4, 18022501), (7, 10298572), (14, 5149286), (23, 3134348), (28, 2574643), (31, 2325484), (46, 1567174), (62, 1162742), (92, 783587), (124, 581371), (157, 459172), (161, 447764), (217, 332212), (314, 229586), (322, 223882), (434, 166106), (529, 136276), (628, 114793), (644, 111941), (713, 101108), (868, 83053), (1058, 68138), (1099, 65596), (1426, 50554), (2116, 34069), (2198, 32798), (2852, 25277), (3611, 19964), (3703, 19468), (4396, 16399), (4867, 14812), (4991, 14444), (7222, 9982), (7406, 9734)]