19491472

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1217}}^1$

素因数の和:1256

約数の個数: 80

約数和(自身を含む): 50746752

約数和(自身を除く): 31255280

約数列:

[1, 2, 4, 7, 8, 11, 13, 14, 16, 22, 26, 28, 44, 52, 56, 77, 88, 91, 104, 112, 143, 154, 176, 182, 208, 286, 308, 364, 572, 616, 728, 1001, 1144, 1217, 1232, 1456, 2002, 2288, 2434, 4004, 4868, 8008, 8519, 9736, 13387, 15821, 16016, 17038, 19472, 26774, 31642, 34076, 53548, 63284, 68152, 93709, 107096, 110747, 126568, 136304, 174031, 187418, 214192, 221494, 253136, 348062, 374836, 442988, 696124, 749672, 885976, 1218217, 1392248, 1499344, 1771952, 2436434, 2784496, 4872868, 9745736, 19491472]

約数ペア:

[(1, 19491472), (2, 9745736), (4, 4872868), (7, 2784496), (8, 2436434), (11, 1771952), (13, 1499344), (14, 1392248), (16, 1218217), (22, 885976), (26, 749672), (28, 696124), (44, 442988), (52, 374836), (56, 348062), (77, 253136), (88, 221494), (91, 214192), (104, 187418), (112, 174031), (143, 136304), (154, 126568), (176, 110747), (182, 107096), (208, 93709), (286, 68152), (308, 63284), (364, 53548), (572, 34076), (616, 31642), (728, 26774), (1001, 19472), (1144, 17038), (1217, 16016), (1232, 15821), (1456, 13387), (2002, 9736), (2288, 8519), (2434, 8008), (4004, 4868)]