161489265

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{1327}}^1$

素因数の和:1422

約数の個数: 64

約数和(自身を含む): 316170240

約数和(自身を除く): 154680975

約数列:

[1, 3, 5, 7, 15, 19, 21, 35, 57, 61, 95, 105, 133, 183, 285, 305, 399, 427, 665, 915, 1159, 1281, 1327, 1995, 2135, 3477, 3981, 5795, 6405, 6635, 8113, 9289, 17385, 19905, 24339, 25213, 27867, 40565, 46445, 75639, 80947, 121695, 126065, 139335, 176491, 242841, 378195, 404735, 529473, 566629, 882455, 1214205, 1537993, 1699887, 2647365, 2833145, 4613979, 7689965, 8499435, 10765951, 23069895, 32297853, 53829755, 161489265]

約数ペア:

[(1, 161489265), (3, 53829755), (5, 32297853), (7, 23069895), (15, 10765951), (19, 8499435), (21, 7689965), (35, 4613979), (57, 2833145), (61, 2647365), (95, 1699887), (105, 1537993), (133, 1214205), (183, 882455), (285, 566629), (305, 529473), (399, 404735), (427, 378195), (665, 242841), (915, 176491), (1159, 139335), (1281, 126065), (1327, 121695), (1995, 80947), (2135, 75639), (3477, 46445), (3981, 40565), (5795, 27867), (6405, 25213), (6635, 24339), (8113, 19905), (9289, 17385)]