18754876

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^2\times {\mathrm{41}}^1$

素因数の和:131

約数の個数: 72

約数和(自身を含む): 42039648

約数和(自身を除く): 23284772

約数列:

[1, 2, 4, 7, 14, 17, 28, 31, 34, 41, 62, 68, 82, 119, 124, 164, 217, 238, 287, 434, 476, 527, 574, 697, 868, 961, 1054, 1148, 1271, 1394, 1922, 2108, 2542, 2788, 3689, 3844, 4879, 5084, 6727, 7378, 8897, 9758, 13454, 14756, 16337, 17794, 19516, 21607, 26908, 32674, 35588, 39401, 43214, 65348, 78802, 86428, 114359, 151249, 157604, 228718, 275807, 302498, 457436, 551614, 604996, 669817, 1103228, 1339634, 2679268, 4688719, 9377438, 18754876]

約数ペア:

[(1, 18754876), (2, 9377438), (4, 4688719), (7, 2679268), (14, 1339634), (17, 1103228), (28, 669817), (31, 604996), (34, 551614), (41, 457436), (62, 302498), (68, 275807), (82, 228718), (119, 157604), (124, 151249), (164, 114359), (217, 86428), (238, 78802), (287, 65348), (434, 43214), (476, 39401), (527, 35588), (574, 32674), (697, 26908), (868, 21607), (961, 19516), (1054, 17794), (1148, 16337), (1271, 14756), (1394, 13454), (1922, 9758), (2108, 8897), (2542, 7378), (2788, 6727), (3689, 5084), (3844, 4879)]