13978965

素因数分解:

$3^1\times 5^1\times 7^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1$

素因数の和:72

約数の個数: 128

約数和(自身を含む): 32256000

約数和(自身を除く): 18277035

約数列:

[1, 3, 5, 7, 11, 13, 15, 19, 21, 33, 35, 39, 49, 55, 57, 65, 77, 91, 95, 105, 133, 143, 147, 165, 195, 209, 231, 245, 247, 273, 285, 343, 385, 399, 429, 455, 539, 627, 637, 665, 715, 735, 741, 931, 1001, 1029, 1045, 1155, 1235, 1365, 1463, 1617, 1715, 1729, 1911, 1995, 2145, 2695, 2717, 2793, 3003, 3135, 3185, 3705, 3773, 4389, 4459, 4655, 5005, 5145, 5187, 6517, 7007, 7315, 8085, 8151, 8645, 9555, 10241, 11319, 12103, 13377, 13585, 13965, 15015, 18865, 19019, 19551, 21021, 21945, 22295, 25935, 30723, 32585, 35035, 36309, 40755, 49049, 51205, 56595, 57057, 60515, 66885, 71687, 84721, 95095, 97755, 105105, 133133, 147147, 153615, 181545, 215061, 245245, 254163, 285285, 358435, 399399, 423605, 665665, 735735, 931931, 1075305, 1270815, 1996995, 2795793, 4659655, 13978965]

約数ペア:

[(1, 13978965), (3, 4659655), (5, 2795793), (7, 1996995), (11, 1270815), (13, 1075305), (15, 931931), (19, 735735), (21, 665665), (33, 423605), (35, 399399), (39, 358435), (49, 285285), (55, 254163), (57, 245245), (65, 215061), (77, 181545), (91, 153615), (95, 147147), (105, 133133), (133, 105105), (143, 97755), (147, 95095), (165, 84721), (195, 71687), (209, 66885), (231, 60515), (245, 57057), (247, 56595), (273, 51205), (285, 49049), (343, 40755), (385, 36309), (399, 35035), (429, 32585), (455, 30723), (539, 25935), (627, 22295), (637, 21945), (665, 21021), (715, 19551), (735, 19019), (741, 18865), (931, 15015), (1001, 13965), (1029, 13585), (1045, 13377), (1155, 12103), (1235, 11319), (1365, 10241), (1463, 9555), (1617, 8645), (1715, 8151), (1729, 8085), (1911, 7315), (1995, 7007), (2145, 6517), (2695, 5187), (2717, 5145), (2793, 5005), (3003, 4655), (3135, 4459), (3185, 4389), (3705, 3773)]