20180988

素因数分解:

$2^2\times 3^4\times {\mathrm{199}}^1\times {\mathrm{313}}^1$

素因数の和:528

約数の個数: 60

約数和(自身を含む): 53191600

約数和(自身を除く): 33010612

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 162, 199, 313, 324, 398, 597, 626, 796, 939, 1194, 1252, 1791, 1878, 2388, 2817, 3582, 3756, 5373, 5634, 7164, 8451, 10746, 11268, 16119, 16902, 21492, 25353, 32238, 33804, 50706, 62287, 64476, 101412, 124574, 186861, 249148, 373722, 560583, 747444, 1121166, 1681749, 2242332, 3363498, 5045247, 6726996, 10090494, 20180988]

約数ペア:

[(1, 20180988), (2, 10090494), (3, 6726996), (4, 5045247), (6, 3363498), (9, 2242332), (12, 1681749), (18, 1121166), (27, 747444), (36, 560583), (54, 373722), (81, 249148), (108, 186861), (162, 124574), (199, 101412), (313, 64476), (324, 62287), (398, 50706), (597, 33804), (626, 32238), (796, 25353), (939, 21492), (1194, 16902), (1252, 16119), (1791, 11268), (1878, 10746), (2388, 8451), (2817, 7164), (3582, 5634), (3756, 5373)]