898985988

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{42397}}^1$

素因数の和:42457

約数の個数: 72

約数和(自身を含む): 2469259520

約数和(自身を除く): 1570273532

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 31, 36, 38, 57, 62, 76, 93, 114, 124, 171, 186, 228, 279, 342, 372, 558, 589, 684, 1116, 1178, 1767, 2356, 3534, 5301, 7068, 10602, 21204, 42397, 84794, 127191, 169588, 254382, 381573, 508764, 763146, 805543, 1314307, 1526292, 1611086, 2416629, 2628614, 3222172, 3942921, 4833258, 5257228, 7249887, 7885842, 9666516, 11828763, 14499774, 15771684, 23657526, 24971833, 28999548, 47315052, 49943666, 74915499, 99887332, 149830998, 224746497, 299661996, 449492994, 898985988]

約数ペア:

[(1, 898985988), (2, 449492994), (3, 299661996), (4, 224746497), (6, 149830998), (9, 99887332), (12, 74915499), (18, 49943666), (19, 47315052), (31, 28999548), (36, 24971833), (38, 23657526), (57, 15771684), (62, 14499774), (76, 11828763), (93, 9666516), (114, 7885842), (124, 7249887), (171, 5257228), (186, 4833258), (228, 3942921), (279, 3222172), (342, 2628614), (372, 2416629), (558, 1611086), (589, 1526292), (684, 1314307), (1116, 805543), (1178, 763146), (1767, 508764), (2356, 381573), (3534, 254382), (5301, 169588), (7068, 127191), (10602, 84794), (21204, 42397)]