81815696

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{31}}^2\times {\mathrm{313}}^1$

素因数の和:400

約数の個数: 60

約数和(自身を含む): 173985516

約数和(自身を除く): 92169820

約数列:

[1, 2, 4, 8, 16, 17, 31, 34, 62, 68, 124, 136, 248, 272, 313, 496, 527, 626, 961, 1054, 1252, 1922, 2108, 2504, 3844, 4216, 5008, 5321, 7688, 8432, 9703, 10642, 15376, 16337, 19406, 21284, 32674, 38812, 42568, 65348, 77624, 85136, 130696, 155248, 164951, 261392, 300793, 329902, 601586, 659804, 1203172, 1319608, 2406344, 2639216, 4812688, 5113481, 10226962, 20453924, 40907848, 81815696]

約数ペア:

[(1, 81815696), (2, 40907848), (4, 20453924), (8, 10226962), (16, 5113481), (17, 4812688), (31, 2639216), (34, 2406344), (62, 1319608), (68, 1203172), (124, 659804), (136, 601586), (248, 329902), (272, 300793), (313, 261392), (496, 164951), (527, 155248), (626, 130696), (961, 85136), (1054, 77624), (1252, 65348), (1922, 42568), (2108, 38812), (2504, 32674), (3844, 21284), (4216, 19406), (5008, 16337), (5321, 15376), (7688, 10642), (8432, 9703)]