20121388304

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{131}}^1\times {\mathrm{331031}}^1$

素因数の和:331199

約数の個数: 40

約数和(自身を含む): 40637488320

約数和(自身を除く): 20516100016

約数列:

[1, 2, 4, 8, 16, 29, 58, 116, 131, 232, 262, 464, 524, 1048, 2096, 3799, 7598, 15196, 30392, 60784, 331031, 662062, 1324124, 2648248, 5296496, 9599899, 19199798, 38399596, 43365061, 76799192, 86730122, 153598384, 173460244, 346920488, 693840976, 1257586769, 2515173538, 5030347076, 10060694152, 20121388304]

約数ペア:

[(1, 20121388304), (2, 10060694152), (4, 5030347076), (8, 2515173538), (16, 1257586769), (29, 693840976), (58, 346920488), (116, 173460244), (131, 153598384), (232, 86730122), (262, 76799192), (464, 43365061), (524, 38399596), (1048, 19199798), (2096, 9599899), (3799, 5296496), (7598, 2648248), (15196, 1324124), (30392, 662062), (60784, 331031)]