20156701984

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{571}}^1\times {\mathrm{64891}}^1$

素因数の和:65489

約数の個数: 48

約数和(自身を含む): 42092066016

約数和(自身を除く): 21935364032

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 68, 136, 272, 544, 571, 1142, 2284, 4568, 9136, 9707, 18272, 19414, 38828, 64891, 77656, 129782, 155312, 259564, 310624, 519128, 1038256, 1103147, 2076512, 2206294, 4412588, 8825176, 17650352, 35300704, 37052761, 74105522, 148211044, 296422088, 592844176, 629896937, 1185688352, 1259793874, 2519587748, 5039175496, 10078350992, 20156701984]

約数ペア:

[(1, 20156701984), (2, 10078350992), (4, 5039175496), (8, 2519587748), (16, 1259793874), (17, 1185688352), (32, 629896937), (34, 592844176), (68, 296422088), (136, 148211044), (272, 74105522), (544, 37052761), (571, 35300704), (1142, 17650352), (2284, 8825176), (4568, 4412588), (9136, 2206294), (9707, 2076512), (18272, 1103147), (19414, 1038256), (38828, 519128), (64891, 310624), (77656, 259564), (129782, 155312)]